Bostonchef: your examples are not really the same (ie. asking for a free case with the cell phone) because in this sort of negotiation process, the seller is knowingly giving you an added-value. In the case of trying to get your FF# in the system on a Priceline ticket, I highly doubt that it is possible if the employee knows the rules, and is paying close attention to what he/she is doing. The only way to get the number in the reservation is probably because the employee is unaware of priceline tickets (ie. new employee)