How do I know this? I found out today when I went to update a credit card in Mileage Plus Dining. After I had entered my new card number to receive Mileage Plus miles on United, I received an error that stated my card was already enrolled in another program. Confused, I called Rewards Network customer service who informed me that the card was already registered for Upromise, so it could not be registered for 2 programs that Reward Network handled. Nowhere on the Rewards Network site is there a disclosure about Upromise nor is there a disclosure about Rewards Network conflicts on the Upromise site or on the Mileage Plus Dining site.
I wonder if the various program partners of Upromise and Mileage Plus Dining know about the Rewards Network system limitation. If I owned a restaurant and was paying to participate in Rewards Network to drive people to my restaurant by providing United Mileage Plus miles, I would definitely want to know that people subscribed to Upromise would not receive that benefit. Furthermore, it sucks for me as a consumer to not be able to receive both Upromise money for my daughter’s college as well as Mileage Plus miles for dining out.