I think a lot of people aren't getting the e-mails at the moment (possibly due to volume of orders)
Having said that I recently upgraded to 200mb broadband and it still took 3-4 days for the e-mail confirmation to come through.
Ordered the Tuesday evening, e-mail didn't arrive until late Sunday evening.
I got my v6 boxes ordered, but only after been told 3 different prices, twice being told my contract would go up.
After 2 hours with the online chat I finally got a price in line with other people £114 for 2 boxes and no contract increase.
Not being installed until Jan though