Is there a limit to how many referral vouchers I can earn? October 29, 2018 15:13 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 Frequent Cruiser Loyalty Club? How does the referral program work? Can I earn a referral voucher for friends or family that are going on the same cruise with me?