Actual Openreach engineers (not necessarily contractors) are usually quite accommodating with these matters.
However as this is a CityFibre-based install, its not clear to me how typically accommodating their subbies are. If they want shot quickly they will probably just says 'sorry...no'
See how you get on with the installer on the day, as said.
BTW - curious - why did you post this in the Vodafone forum? Thought you posted earlier today that you had ordered Air Broadband over CF, not Vodafone.
Edited by Pheasant (Sun 18-Sep-22 23:04:47)