Well, what's done is done. Some of the stuff that were (accidentally) done were stuff that I wanted to do anyways (e.g. grilles, lights, fans, floor polish, additional lighting points). I asked around prior to this about the cost to do up the apartment like that and the ballpark figure given was around RM4500-5000. So just to be fair to the contractor, I paid him slightly over half of what he wanted. At least it will cover some of the material cost for him (with the exception of the green tiles) and definitely much better than having to tear down the stuff that he had done. I reckon the sight of the green tiles would make a good conversation item when people come round to visit.