A consumer tracking and rewards system and related methods that provide for consolidating two or more merchant-branded rewards accounts into a single source. A single unique identifier referred to as a consumer number used to track and credit purchases with respect to multiple retail establishments. The consumer number may exist simply as a data element in the system or may be printed, bar coded, or programmed onto any physical medium or device. Components of the system include a consumer rewards platform, a merchant-consumer rewards system and potentially a card vendor system. The consumer rewards platform facilitates communication and the transfer of data between the various components of the system. A cross-reference between single consumer numbers and one or more merchant rewards program numbers is used to accommodate the trading and linking of information among participating merchants. Consumers may communicate with the various system components through a consumer web portal. A website is also available to merchants so they may view statistical information regarding rewards program participation.