Hi all. Really hoping for some advice. I have a composite sink in my new kitchen and when the fitter was putting it in, it broke. He claims it was a faulty sink and not his fault, but the sink was sitting in the worktop the previous evening and looked absolutely fine. I even have a picture of it. He claims it was a hairline crack and wouldn't have been visible to my eye. He went to Homebase and bought a replacement sink, but has left old one for me to return. He has now said he wants a full refund or expects me to pay. Things haven't ended well between us. Standard 8 unit kitchen and it took him 17 days to fit. In the end I had to tell him to go because I couldn't afford him any more. I have attached before and after pics. Am I going mad? Thank you in advance for any advice?