I am really disappointed with my Liebherr fridge freezer, suppose to be frost free but the fridge keeps frosting up inside at the back and I dont know why. Spoke to service dept but all they say is they can get someone to come out & have a look but I will have to pay £80 even if there is no fault. Works perfectly ok, but the frost free is rubbish. Has anyone else had this problem. The model is about 3 years old.