I would have fibre flex screeded the lot including the ply, very rare I go direct on ply these days and the only time I do is if its a busy small room like the usual dining room or lounge. He should have took the ply few inches over onto the concrete plugged and screwed then screeded the lot, that how I would have done it.
thanks everyone one for your help he has done the living room too don't want to show you pictures of that too in case you find problems in that too.
yes brampton he coming back to do all the things that are wrong.if they are still wrong will get a inspection done thanks so much for all your help