Is that where they smear the walls in their own number 2, pushing it into all the nooks and crannys to cause maximum work for the biohazzard clean up crew?
straight to the point.
There's no chance of getting your money back, don't let the guy back through the door again, save the pictures, get a hammer and chisel and rip it off, and get someone else to do it right after having seen two or three of examples of his work.
looks like the "H" block cells in the Maze, back in the hunger strike days, only difference is that's a rubbish job where as they used rubbish to decorate the walls in the Maze
Shocking!!
There is no way a "Tiler" has done that.. At best a "Chancer"
I think that it's beyond salvation..Best advice .. Remove them and start again.. And get your money back!