Originally Posted by Grasshopper
The only problem with this is that you have to have at least ONE card registered at each place. This makes it a problem when you try to register with AA, DL, NW, and UA, and only have two credit cards. The iDine sites won't let you unregister a card if it's the only card registered for that particular program.- Sameer
Unless, Idine has recently changed more rules that is not quite the case. You can close the account to free up your credit card. Then when another promo comes along you can reopen that account by providing a c card number.