I suppose I just have to keep an eye open for Openreach vans and try the wholesale checker unless anyone else has another idea?
Yep: one.network, OR checker, and BT wholesale checker. The latter is the one which will tell you when the service is ready to order.
To be clear the guys filling in the road said it was fibre and that the area was blocked so they couldn’t put it through until they relayed the duct. I don’t know if that makes any difference (and I am not sure if I said that originally)
If a trench has to be dug for a new duct, then that could be expensive. The cost obviously depends on the length required, but if it's large it could put your area to the bottom of the pile for commercial install.
If a road closure is required for the dig, that would normally require a 3 month notice period - but it should show as planned on one.network.