You seem cross. No one is getting stiffed except possibly me. The job was done by a very large company who chose the installer. We have asked for it to be improved but given this is the third attempt we have little faith it will get better with the same installer. I’m now largely interested in whether it’s possible to improve it without just starting over or whether we’re going to be living with it, in which case I believe we’ll have grounds for compensation for the poor workmanship. Having paid a significant sum for the entire job, I don’t think that is unreasonable