Recently, a notification started popping up stating that an in app purchase for the game MeWantBamboo could not be made at the time and to try again later. I did not make any purchase in the app, I haven't even opened it in quite a while. The only reason I think it can't make the purchase because I currently do not have a credit card linked to my account. This notification kept popping up whenever I opened the AppStore or iBook. Today, it popped up again but this time it said this (the MeWantBamboo puchase) and 8 other purchased could not be made at this time, please try again later. I want to link a credit card in the future but am scared that it will make these purchases by itself. Does anyone know how to fix this?