D
Divad
I have a pearl of wisdom. Speak to your home insurers about sticking in a claim. You can foward them the TTA report and everything else you have gathered. Let them pay for it to be replaced OR, if they believe the tiler was at fault, or the seller of the tielrs, or the pourer of the floor screed, then THEY can take it up with the insurers of those parties and you won't have to do all this running around and detective work.
