I use a Taco Bell gift card for all my purchases at Taco Bell. I was able to use that method of payment the 1st time I used the app. Now it gives a pop up saying they can not process the method of payment. Then I have to use my debit card. I WANT TO USE MY GIFT CARDS!! I don't get the rewards from the app unless I order through the app. I don't think it is worth the hassle.