passport to travel promised free vacation/resort,cruise and air fare tampa, Florida

We received a postcard in the mail to attend a presentation for Global Discovery Vacations.

The postcard stated that we would received free airfare to anywhere in the USA for attending the presentation. At the end of the presentation they gave us three vouchers from Passport to Travel.  One voucher was for a 3 or 4 night cruise. The next was for a 3 night resort vacation and the last was for free airfare anywhere in the USA.                                                                                                                                                                                                                                                                                                                I came home and filled out the required forms and sent two seperate checks for fifty dollars each for the registration activation fees for the cruise and resort vacations. We never heard from Passport to Travel again.  I've called and they keep saying they have sent the information via e-mail and asking me to verify my e-mail address. The last person I spoke to was very abrupt and I am tired of getting the run around.