An example funds facilitation system that facilitates transactions between a payer and payee includes a promotion processing system that facilitates the provision of promotions to account holders on the funds facilitation system. The party offering the promotion may be a merchant/payee that also has an account with the funds facilitation system. The promotion processing system applies promotion rules based on the identity of the merchant/payee and upon conditions placed on the promotion that identify a payer or a group of payers to receive the promotion. A user interface is provided for generating promotion rules and monitoring promotions. A user interface is also provided that displays unused promotion and gift codes and links to merchant/payee websites associated with the unused codes. The funds facilitation system can also provide authorization for purchases based on a condition, such as the age of the payer.