What we won’t be using anymore is the prepaid virtual card – in fact Google has decided to eliminate the prepaid card from Wallet altogether. Starting next week (the 17th) you will no longer be able to load money onto your Google Prepaid Card, or access the card from any new devices. That’s not all, as a month later on October 17th the Google Prepaid Card option will disappear completely from Google Wallet.
So you’ll want to try and spend the remainder of your prepaid balance, although if for whatever reason you don’t Google will be offering refunds that you can ask for by visiting the Google Wallet site after the 17th. So if you rely on Google Wallet be sure to get your preferred debit or credit card on there, and if you have a prepaid card balance, go spend it!
source: Google via Droid-Life