Yes, I know.
Given I'm been dealing with this BS for a decade I've got a reasonable understanding of what should happen vs what actually happens.
Majority <> all
Openreach just seem to be doing what we did when I worked at a software business dealing with major governments, if we didn't want to do something but couldn't say no, we just massively inflated the cost and sometimes the timings. Did get bitten once when our 2-3x pricing was less than SAPs ....