
<PAGE>   1

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                  SCHEDULE 13D

                    Under the Securities Exchange Act of 1934
                               (Amendment No. 2)*

                             Lasergate Systems, Inc.
            --------------------------------------------------------
                                (Name of Issuer)

                          Common Stock $0.03 Par Value
            --------------------------------------------------------
                         (Title of Class of Securities)

                                   517906 50 9
            --------------------------------------------------------
                                 (CUSIP Number)

                                John M. Markovich
                                Tickets.com, Inc.
                        4675 MacArthur Court, Suite 1400
                         Newport Beach, California 92660
                                 (949) 862-5400
            --------------------------------------------------------
            (Name, Address and Telephone Number of Person Authorized
                     to Receive Notices and Communications)


                                  June 21, 1999
            --------------------------------------------------------
             (Date of Event which Requires Filing of this Statement)

If the filing person has previously filed a statement on Schedule 13G to report
the acquisition which is the subject of this Schedule 13D, and is filing this
schedule because of Rule 13d-1(e), 13d-1(f) or 13d-1(g), check the following box
 .

Note: Schedules filed in paper format shall include a signed original and five
copies of the schedule, including all exhibits. See Section 13d-7b for other
parties to whom copies are to be sent.



--------
*

     *The remainder of this cover page shall be filled out for a reporting
person's initial filing on this form with respect to the subject class of
securities, and for any subsequent amendment containing information which would
alter the disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the Securities Exchange Act of
1934 ("Act") or otherwise subject to the liabilities of that section of the Act
but shall be subject to all other provisions of the Act (however, see the
Notes).

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CUSIP NO. 517906509                                           Page   2   of   6
          -----------                                              -----    ---

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    1       Names of Reporting Person: Tickets.com, Inc. (f/k/a Advantix, Inc.)
            I.R.S. Identification No. of Above Person (if entity): 06-1424841

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    2       Check the Appropriate Box if a Member of a Group*
                                                                             (a)
                                                                             (b)
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    3       SEC use only

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    4       Source of Funds*

                    WC
                    OO
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    5       Check if Disclosure of Legal Proceedings is Required Pursuant to
            Items 2(d) or 2(e)


--------------------------------------------------------------------------------
    6       Citizenship or Place of Organization

                    Delaware
--------------------------------------------------------------------------------
 Number of shares       7     Sole voting power
beneficially owned
 by each reporting             24,818,217
    person with
                     -----------------------------------------------------------
                        8     Shared voting power

                     -----------------------------------------------------------
                        9     Sole dispositive power

                               24,818,217
                     -----------------------------------------------------------
                       10     Shared dispositive power

--------------------------------------------------------------------------------
    11      Aggregate Amount Beneficially Owned by Each Reporting Person

                    24,818,217
--------------------------------------------------------------------------------
            Check if the Aggregate Amount in Row (11) Excludes Certain Shares*


--------------------------------------------------------------------------------
    13      Percent of Class Represented by Amount in Row (11)

                    61.9%
--------------------------------------------------------------------------------
    14      Type of Reporting Person*

                    CO
--------------------------------------------------------------------------------

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        This Amendment No. 2 to Schedule 13D (the "Amendment") is being filed on
behalf of Tickets.com, Inc. (f/k/a Advantix, Inc.) ("Tickets.com") to amend the
Schedule 13D (the "Schedule 13D") which was originally filed on February 3,
1999, and amended on February 26, 1999 and relates to the common stock, $.003
par value (the "Common Stock"), and Series G Preferred Stock, which is
convertible into Common Stock (the "Preferred Stock") of Lasergate Systems,
Inc., a Florida corporation (the "Issuer"). All terms used and not otherwise
defined herein shall have the meanings attributed to such terms in the Schedule
13D. This Amendment is being filed pursuant to Rule 13d-2 of the General Rules
and Regulations under the Securities and Exchange Act of 1934 as amended. Only
those items reported herein are amended; all other items remain unchanged.


ITEM 4. PURPOSE OF TRANSACTION. The purpose of the transactions described below
in this Item 4 is to acquire the shares of capital stock of the Issuer for the
purpose of gaining control of the Issuer.

        (a)-(b) On January 24, 1999, Tickets.com and RBB Bank AG ("RBB") entered
into a Stock Purchase Agreement (the "Purchase Agreement"), providing for the
purchase by Tickets.com from RBB of 7,837,332 shares of Common Stock (the
"Common Shares") for cash in the amount of $783,733.20 and 5,700 shares of
Preferred Stock (the "Preferred Shares") for shares of common stock of
Tickets.com ("Tickets.com Common Stock") equal to an exchange ratio of 170.081
multiplied by the number of shares of Preferred Stock owned by RBB, which shares
of Preferred Stock are convertible into 24,818,217 shares of Common Stock.
Pursuant to the Purchase Agreement, the closing for purchase of the Common
Shares and Preferred Shares was to be held not later than May 15, 1999, or such
later date as RBB and Tickets.com agreed.

        On June 21, 1999, Tickets.com and RBB amended the Purchase Agreement
pursuant to an agreement dated as of that date (the "Amended Purchase
Agreement"), whereby Tickets.com agreed to purchase and RBB agreed to sell,
within three business days of the execution of a definitive Agreement and Plan
of Merger between the Issuer and Tickets.com, all of the Preferred Shares in
exchange for, at the election of RBB, (a) 170.081 shares of Tickets.com Common
Stock for each Preferred Share, or (b) $435.00 per each Preferred Share, or a
combination thereof. Additionally, Tickets.com and RBB agreed that Tickets.com
would purchase the Common Shares as part of a merger of Tickets.com or its
subsidiary with the Issuer pursuant to a definitive Agreement and Plan of Merger
and not as a separate transaction under the Purchase Agreement. The obligation
of Tickets.com to purchase the Preferred Shares was subject to the resignation
by Jacqueline E. Soechtig as an officer and director of the Issuer and Ms.
Soechtig's general release of the Issuer and Tickets.com. All other terms of the
Purchase Agreement continue in full force and effect, including RBB's agreement
to support a merger of the Issuer with and into Tickets.com or a subsidiary of
Tickets.com, and to vote all of the Common Shares in favor of a merger.

        On June 21, 1999, the Issuer and Tickets.com entered into a definitive
Agreement and Plan of Merger dated as of that date (the "Merger Agreement"),
pursuant to which the Issuer agreed to the merger (the "Merger") of the Issuer
with and into a wholly-owned subsidiary of Tickets.com ("MergerSub"), subject to
receipt of approval by the shareholders of the Issuer. At the effective time of
the Merger, the separate existence of MergerSub will cease to exist and the
Issuer will continue as the surviving corporation and as a wholly-owned
subsidiary of Tickets.com (the "Surviving Corporation"). Holders of the Common
Stock of the Issuer will receive, in exchange for each share of Common Stock
held by them, $0.10 ("Cash Consideration"). The Issuer will, at or before the
consummation of the Merger, cancel and cause the surrender of all outstanding
options validly issued pursuant to the Issuers' Stock Option Plan or otherwise
(the "Options"), regardless of whether the Options are then exercisable. In
settlement of the surrender and cancellation of each Option, each holder of an
Option that is exercisable at the effective time will be entitled to receive an
amount in cash, without interest, equal to the product of (i)(A) the Cash
Consideration, minus (B) the exercise price per share of Issuer Common Stock
under the Option, multiplied by (ii) the number of shares of Common Stock
covered by such Option; provided, however, that the Issuer shall withhold any
applicable federal and state withholding taxes. Holders of the Preferred Stock
shall continue to hold their shares. Holders of each issued and outstanding
warrant issued pursuant to the Warrant Agreement between the Issuer and American
Securities



                                  Page 3 of 6
<PAGE>   4


Transfer, Inc., dated October 25, 1994 ("Public Warrant") shall be entitled to
receive an amount of cash ("Warrant Consideration"), without interest, equal to
the product of (i)(A) the Cash Consideration, minus (B) the exercise price of
each Public Warrant, multiplied by (ii) the number of shares of Common Stock
covered by such Public Warrant; provided, however, the Issuer shall withhold any
applicable federal and stated withholding taxes. In the event that the Cash
Consideration is less than or equal to the exercise price of the Public Warrant,
the Holders will receive no Warrant Consideration or any other Cash
Consideration.

        On June 28, 1999, following the execution of the Merger Agreement, RBB
sold and delivered the Preferred Shares to Tickets.com in exchange for 674,541
shares of Tickets.com Common Stock and $754,290.

        (d) Pursuant to the terms of the Merger Agreement, two designees of RBB
were appointed to the Board of Directors of the Issuer, and the remaining
members of the Board of Directors of the Issuer tendered their resignations.
Upon consummation of the Merger, the board of directors of the Surviving
Corporation shall have three members, all of whom will be chosen by Tickets.com.
The officers of the Surviving Corporation shall be the officers of the Issuer
from and after the effective time of the Merger.

        (g) Upon consummation of the Merger, the Articles of Incorporation of
MergerSub, as in effect immediately prior to the Merger, shall be the Articles
of Incorporation of the Surviving Corporation, with the exception that the name
of the Surviving Corporation shall become "Lasergate Systems, Inc.". Upon
consummation of the Merger, the Bylaws of MergerSub, as in effect immediately
before the effective time shall be the Bylaws of the Surviving Corporation.

        (h) Upon consummation of the Merger, as planned, the Common Stock will
be deregistered under the Exchange Act of 1934.

ITEM 5. INTERESTS IN SECURITIES OF THE ISSUER.

        (a) As a result of the consummation of the transactions contemplated by
the Amended Purchase Agreement referred to in Item 4 above, Tickets.com
beneficially owns 5,700 shares of Preferred Stock, which are convertible into
24,818,217 shares of Common Stock, representing in the aggregate approximately
61.9% of the Common Stock as reported in the Issuer's Quarterly Report on Form
10-QSB for the quarter ended September 30, 1998 (the most recent quarterly
report filed by the Issuer)

        (b) As a result of the consummation of the transactions contemplated by
the Amended Purchase Agreement referred to in Item 4 above, Tickets.com has sole
power to vote or to direct the vote of and to dispose or direct the disposition
of the 5,700 Preferred Shares.

ITEM 6. CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIPS WITH RESPECT TO
        SECURITIES OF THE ISSUER.

        Except for the Purchase Agreement, the Amended Purchase Agreement, and
the Merger Agreement referred to in Item 4 above, Tickets.com is not a party to
any contract, arrangement, understanding or relationship (legal or otherwise)
with respect to any securities of the Issuer, including but not limited to
agreements to transfer or voting of any of the securities, finder's fees, joint
ventures, loan or option arrangements, put or calls, guarantees of profits,
division of profits or loss or the giving or withholding of any proxy.



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ITEM 7. MATERIAL TO BE FILED AS EXHIBITS.

        Exhibit 1     First Amendment to Agreement, dated as of June 21, 1999,
                      between RBB and Tickets.com


        Exhibit 2     Agreement and Plan of Merger, dated as of June 21, 1999,
                      between Tickets.com, MergerSub and the Issuer.




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                                    SIGNATURE

        After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.

Dated: July 6, 1999.


                                        TICKETS.COM, INC.


                                        By:  /s/ John M. Markovich
                                           -------------------------------------
                                           John M. Markovich,
                                           Executive Vice President & Chief
                                           Financial Officer


        The original statement shall be signed by each person on whose behalf
the statement is filed or his authorized representative. If the statement is
signed on behalf of a person by his authorized representative (other than an
executive officer or general partner of this filing person), evidence of the
representative's authority to sign on behalf of such person shall be filed with
the statement, provided, however, that a power of attorney for this purpose
which is already on file with the Commission may be incorporated by reference.
The name and any title of each person who signs the statement shall be typed or
printed beneath his signature.

        ATTENTION: INTENTIONAL MISSTATEMENTS OR OMISSIONS OF FACT CONSTITUTE
        FEDERAL CRIMINAL VIOLATIONS (SEE 18 U.S.C. 1001).



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