Just spoken to a very nice lady at the Winchester store who happened to have personally processes my order yesterday so I should FINALLY get it today.

Seems we were right all along though, MPD online made a real cockup of this whole thing. They referred too many orders to each store who are under-stocked in N900s, under-staffed and generally not very pleased that they have to call so many people to confirm the card details.

So I have to agree with what has been said elsewhere in this thread. If you can find out which store yours is sent from, give them a call. The staff working in the stores are pleasant even under these dire circumstances.