You can use credit card, when you check out it will display your primary pay method followed by back up method which you added from the bank/cards bit before.
I had something bounce on my credit card as the primary source and get taken from my debit account, as HSBC thought it was too do with fraud... which ummm, makes no sense as either way they gave them the money for 4-2-1 manifolds

Had it happen the other way as well
