Thought we called Allegiant to make flight reservations. All went well and we made the flight. Upon receipt of our credit card statement we had a booking fee charge of $533.98 from Flight Search. We had no idea we were talking to this company and no disclosure of booking fees was discussed, we were never sent an invoice either. At this point we are stuck with filing a grievance with both the credit card company and Flight Search. Reputable businesses do not act in this manner.