Is there a limit to how many referral vouchers I can earn? December 19, 2018 13:49 Updated There is no limit to the amount of vouchers you can earn and apply to a future reservation. Related articles How will I receive my credit for a referring another customer? What is the Book Now & Pay Later promotion? How many reservations can I hold for the "No Deposit required" benefit? How do I receive Loyalty Program Points for my cruise booking?