We got a whole price for the extension including the extended bathroom. When we came to choose the tiles in the showroom I had saw this type of recess and asked the builder if he could do it, he said yes but it would be £150 extra as involved more time/labour as was tricky, we agreed as wanted the recess. The rest of the bathroom as I said in the beginning is fine, a couple of slightly proud tiles here and there but nothing shouting out at you so that to us is acceptable. The tiler is a really nice guy and already said when he finished it the first time, if we were not happy with anything to let him know and he would fix it. So as we were not happy with the recess and a couple of other small snagging bits the builder fetched him back, the small snagging bits are now fine but the recess to us is still annoying especially as it is right where the shower is and you look at it every you shower. I think the best thing is for me to find another tiler, explain on the phone the problem and if I can get a professional tiler with pride in his work to come out to get it done myself. No point in spoiling what is a stunning bathroom for a small part that we are not happy with if it can be fixed.
Thank you all for your help. Much appreciated.