Still haven't been charged for either of the two orders of mine that are 'processing', it was with a debit card, so I was under the impression they charged it straight away and it was only Credit Cards that were charged on dispatch.
It was annoying that Barclaycard went into Fraud Protection mode when I tried to order last Friday, as with my debit card not yet having been charged, I'm worried that is going to do the same. As I used to have my debit card linked to my Apple account for iTunes purchases, but then I got hit by their fraud department because apparently apple purchases are really dodgy and lots of fraud goes on with hacked iTunes accounts.
You can't actually change the payment method on the processing page, as otherwise I could have kept one as debit card and tried entering my Credit Card again now I sorted the fraud issue out.
Still in two minds as whether to keep the order open for the second phone that was accidentally ordered. I don't think the prices that some will be willing to pay will be obvious until its on sale and out of stock.