Finally was able to call them in today and it was very easy. I had tried online several times and called in twice without luck. It seemed to be linked to the cyber attack issues so I wouldn't hesitate to buy again.
I've been trying to apply 5 $500 AARP gift cards since Friday both online, calling general reservations and then the gift card department today. They keep getting an error and say it's because of the cyber security breach last week. Anyone else having issues with these processing or having them work the last few days?