Mymixx rewards??? – Shaw’s Deals & Delivery Review

I had 10 gas rewards on the app but when I went to the gas station it said I had none. I called the customer service number and told them and they did fix it (days later). Now it's happened again. My app says that I have 5 gas rewards but when I went to get gas it says I have none. This is very frustrating. Please fix this glitch or don't offer the rewards
Review by mattnarm on Shaw’s Deals & Delivery.