Freezer Burgens.

Absolutely disgusted with the service I received from Burgens. 6 callouts to come and view my defrosted freezer, everytime they came out they claimed that there was something different causing the problem. Originally the gas, then they claimed the element needed replacing, then they said that they nicked the wire and had to replace it. My freezer is still defrosting on its own, it is the third time I have lost all of my food in my freezer, I called them out again the 6th time. They remark that no it's due to power cuts. I them told them we do not experience power cuts, they insisted that I place a bowl of water in the freezer to see if it will freeze. The following day the water remains defrosted, when I call them out the last time he claims that the electronic board is broken and will need to be replaced - at my expense! How is it after 6 times being called out, 2 replaced elements, regas (which I paid for) now do they claim it's an electrical problem? Absolutely disgusted!