exactly they are TRYING to blame him, dont mean he did it
i doubt that they could prove than he scratched the perspex, plus why did it take two weeks from being cleaned for them to contact him. (why not sooner) then there`s the point that the door rolls over, that can cause issues. its not a forgone conclusion that he did it. and just because he feels its possible that he marked it, dose`nt mean he did.
fair enough if he isnt bothered, if he`s happy to take the blame and claim through his insurance regardless weather he done it or not, then fine
but it may be possible to reason with the customer
by removing the marks that he
may or
may not have made, (obviously from his point of view he did`nt mark it, if that is how he feels) plus also the pre-existing ones aswell
i think a lot depends on the attitude of the customer
tony