I had an Amazon gift voucher so I ordered something at £37.50. That amount was debited from my gift voucher as my balance is the remainder of the voucher. However, I have this message against my order: Delivery estimate: We need a little more time to provide you with a good estimate. We'll notify you via e-mail as soon as we have an estimated delivery date. If I go and look for the item in the Amazon store (as though I was buying it for the first time) it says it is out-of-stock but also the price has risen significantly. Now, will Amazon honour my original ordering price (again, it has debited) or will I be expected to make up the difference?