If he gets funny with you,you have always got trading standards as back up,which i'd think he wont want to have to deal with. I know he's not a tiler but if he's happy to charge for a job it has to be done to a certain standard. I hope you get it sorted and not be out of pocket, good luc.k
Ps.. if he's a plumber he's not a good one,that flexi-hose seems to have a too tight "kink" in it,this could affect your water supply to the tap,get someone to look at it,hope you get everything sorted.
As you havent paid yet you have the upper hand. He wont come back and if he did would you really want him there? He's blaming the walls but they were plastered on his recommendation. Get one of the other tilers in (probably qualified) and get them to do a total refit as the recommend,they sound...
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