How will I receive my credit for a referring another customer? December 19, 2018 13:49 Updated Your referral voucher will be emailed to you and added to your customer profile. Related articles Can I earn a referral voucher for friends or family that are going on the same cruise with me? Is there a limit to how many referral vouchers I can earn? Can I earn Loyalty Program Points while redeeming cruise certificates? What is the Book Now & Pay Later promotion? How does the referral program work?