What is maxrewards referral code?

Unfortunately, as an AI language model, I do not have access to specific information regarding referral codes for specific companies or programs, including MaxRewards. However, referral codes are typically used as a marketing tool by companies to incentivize existing customers to refer their friends and family to their product or service. These codes often provide a discount or other benefits to both the referrer and the referred individual. It is always recommended to review the terms and conditions and any limitations associated with referral codes before using them.