I am trying to buy a pair of shoes from eBay. Everything was fine, until after the confirmed address step. I submited all my information but then it won't go through, this message at the top pops up that says: This credit card is already registered in your Paypal account. Use "Update" button if you want to update existing credit card information. I looked, and i can't find an update button anywhere. All the credit card information I entered is correct, why isn't this working??? Please, please, help. Thanks.