Defy's terrible service

Hi all I have a defy side by side fridge /freezer. The freezer board was giving problems and we contacted defy 18.02.2019 , a technician was sent after a week and he saw that with our original problem the fridge back board was rusting, so he said defy would collect it and repair both problems at once. From here our problems began. After many calls they finally came to collect it on the 15/03/2019 telling us it would be repaired in 5 working days. After a few more calls and many times with them not answering calls and some of the operaters being very rude our appliance was returned to us during the first week of April with a small discount. The condition it was returned in was terrible with the fridge being dirty and dead ****roaches inside. Our problems haven't yet ended as we switched it on after cleaning it and then realised that the panel's in the fridge were not aligned properly and the freezer which is supposed to be a frost free is full of ice even though they said they were testing it at their site. We called them again and have been waiting for a few days for them to come and have a look . I would have added a pic of the ice if i can figure out how to. Thank you jalpan