Trouble with a pending in-app purchase!

Hi,

I'm having trouble with an in-app purchase made recently.

So, what happened was that I got myself a prepaid card with enough cash on it to buy some stuff in a game, filled out all the details in the 'Payment & Shipping section' and proceeded with the purchase.

I was granted the stuff that I purchased in-game, so obviously thought the transaction was complete. The same evening i used the card, thinking that I'd be using whatever amount was left after the transaction but the next day i see that the purchase made is 'Pending' in my 'Purchase History' and now i cannot update any apps in the AppStore!

So i refilled the card with enough cash to complete the pending transactions but till now find myself in the exact same position. I do not have any other card that I can use.

Some advice desperately needed!

Thanks in anticipation...