@Neil
Exactly the same here, their order tracker is rubbish! They've blocked the cash on my credit card too (i.e. had the amount approved but not actually taken it), so I'm just crossing things and hoping for the best at the moment.
I opted for home delivery, not sure if that'll make a difference. I'm unlikely to be in if they try and deliver on Friday though, so sod's law says it's bound to turn up.