F
Fekin
That is quite bad to say the least after looking at those pictures, and I doubt very much that just replacing a few tiles will even come close to making the whole room look uniform.
Personally I would demand the tiler takes the whole lot down and replace what cannot be reused at his own expense, then leave, or if not then tell him you will be contacting Trading Standards, and they will be able to inform you on your best course of action.
The tiler should also have Public liability insurance that you may be able to claim against for the cost involved in getting the job redone to a propper standard maybe.
Good luck
Personally I would demand the tiler takes the whole lot down and replace what cannot be reused at his own expense, then leave, or if not then tell him you will be contacting Trading Standards, and they will be able to inform you on your best course of action.
The tiler should also have Public liability insurance that you may be able to claim against for the cost involved in getting the job redone to a propper standard maybe.
Good luck