Whether it is QVC at fault or the manufacturer getting the orders in earlier the best thing to do is, if you do not have the money to pay for it right now don't order. The date of advanced orders is no longer set in stone. If people do not check it out of their basket then its available straight away. If the maker is going to get a good sale and make money they will rush it to QVC. Its not like the old days of cheque holding, were people paid by cheque and had a think or waiting for their wages to come in before changing payment method or posting the cheque.
So do not chance it with advanced orders, if you don't have the fund readily available let it go.