I heard about this on disboards--then it happens to us. We checked out of AKV at 11 AM, but planned to eat later on DDP that night, and our keycards had no value left on them. I found out early, luckily, when I tried to grab a snack at Kidani. I walked over to front desk, they assured me 4 meals and 4 snacks left, then I tried again, no luck. AKV Desk manager said there is a glitch in the system and it wipes out credits when you check out--even though they are still there--only option was to pay cash and bring all receipts back to front desk--which we did--but what if I was in the parks and that had happened? Or at a restaurant not at AKV? For us, no big dea, we were eating at Bomas that night. But just a head up to others--try to buy a snack right after you check out to see if you card still works! FYI-- AKV front desk was very gracious and gave us a nice gift without any suggestion by me for our trouble.