What app? AARP? For the first time we bought some about a week or so ago. We went to buy more today by signing myself up. We had major issues because dh login had my email address and my cell phone. I use my stuff so much more it was easier. Didn't realize it would cause a problem. First rep wasn't good and she ultimately "disconnected" me. Called and got someone else who realized we needed to be transferred. That person helped. We had to first change dh email address to his so I could use mine. Then I had to use his cell number for my login. Ultimately we will change it. However, when I went and found Princess gift cards and clicked on the $500 one I got an error message. Said : We are currently experiencing technical difficulties in processing your request. Please retry in a few minutes. Thank you for your patience. All I did was click on the picture and never got to even enter a credit card, etc. I hope it gets fixed soon as I need to buy my max of 5 before March ends!