appliance repair team

The service tech came in to look at a small wine fridge. He looked at the device for 2 minutes, claimed that he knew the problem and that he had seen it before, and told me the repair is a simple part replacement which will cost $250. I agreed, but after 30 minutes he claimed that another part was also broken and that that part was an additional $400ish. I was already $250 in the hole so I agreed because he assured me that this would solve the issue. After he did the work, he said its working, and that the fridge would take a couple hours to cool but we noticed pretty quickly that the fridge still wasn't working. I called him back and now he told me that I need a new compressor and it's not worth repairing given it costs $1,500.00. He told me to call customer service to see what they can do, but I wish I never contacted them.
Email communications were rude, and I was pretty much told in 1 line email exchanges that that since parts were installed, they cannot issue a refund, taking no responsibility that the work was agreed to based on the recommendation and assurance of their service technicians.
I called in to see if I could have a better chance speaking with a person, but it was the worst customer service call I have ever experienced. Wish I had a recording to share but she literally did not let me speak, speaking over me and eventually putting me on hold while I was speaking, only to offer me 10% discount on the new $1,500 compressor which I told her I was not interested in.
I wish I had checked these reviews before calling them in the first place, as its obvious now that my experience is very common. Do not use this company!