Full story here, shortened version is that we've had a door and window made which are the wrong sizes. Instead of having both door and window fitted by the end of yesterday, the bricklayer has only been able to finish the window this morning and I've got to take half a day off work tomorrow for the glazier to come and fit glass in the door. We've ended up with a board across the back of our house instead of a door for 3 nights (and it's been blimming cold!) which probably invalidates the house insurance.
Given that all this has come about because of the incompetence of the person who measured up, AIBU to ask for a discount on the final cost? On the one hand yes we've got a door and a window which is what we asked for, but on the other the inconvenience has been enormous and the house has had to be left insecure.