Poor customer service

I purchased a chest freezer from defy. Reported the freezer was not sealing and a technician came out. This rude technician (Charlie) then told us to clean the unit when clearly the rubber was damaged as an ordinary person could see. I then re logged a second call for same issue and another tech came and confirmed what I originally said. Brought the spare part after two weeks only to find it was the wrong part. It has now been more than a month and nothing. I called defy once more and was told I was booked for last Friday and guess what. Nothing till today which is another week later mind you.