How will I receive my credit for a referring another customer? November 15, 2018 16:57 Updated Your referral voucher will be emailed to you and added to your customer profile. Related articles How does the referral program work? What is the Red Tag Rewards Club? Can I earn a referral voucher for friends or family that are going on the same cruise with me? How much does it cost to buy a beverage package? What information is required when pre-registering with the cruise line?