I would be very grateful for advice re problems with my newly fitted bathroom. A few days after the 550mm basin was wall-hung (because I don't like the look of pedestals), I rested my hand on it, and a tile behind it cracked, and the basin is now very slightly loose. And, no, I did not swing on it! It is 'fixed' to an outside wall. The plumber arranged to come back and refix it, but then said he's given up plumbing. I would like to have the basin refixed a little further away from the wall, since there is a cabinet above the basin, with insufficient headroom. Could I have a false wall built to hide the pipes and to provide a shelf behind the basin? And would it need a metal frame to fix it? Please can you advise me what to do?