Just phoned orange, hoping to get a tracking number. Apparently we won't actually get one, but if our phone is going to be delivered tomorrow we will get a text (either before or from 8am, can't remember which!) telling us when it will arrive. If we aren't getting it tomorrow, we should get a text telling us when we will receive it (probably Monday). The orders are being dispatched to local depots at midnight tonight (again, I think this is what she said, my memory is not very reliable!).
I'm going to turn my phone volume very loud tonight so I get woken up if the message does come before 8am! Hoping it will be just after midnight, as I'll still be up, but I think that would be unlikely.
Hope that helps.