At long last Openreach engineers have been spotted installing a fibre distribution point on the pole outside my house, so I decided to see if it was available to order. Vodafone, Plusnet, Sky and Zen all say I can now order but suprisingly BT say not available at my address! Is it usual for BT to be later than other ISPs to offer a service?
It's not unknown. Sometimes it's because the BT Wholesale backbaul network doesn't have sufficient capacity at the exchange - however, I'm pretty sure Plusnet will be using that network.
Therefore it could simply be that BT Retail are just taking some time updating their databases.
If you really want to order from BT, then wait a week, and if they're still not showing it as available then phone them up.