Bad Service from Defy

We have a Defy fridge/freezer that we bought a few years back - we actually bought TWO! The one has been repaired on numerous occasions and was again re-gassed earlier this year AND once again has stopped working On the 7th March I phoned Defy to book a repair and to date the fridge is still standing in my kitchen. A repairman phone (we know him quite well now) and told me that as the fridge keeps losing its gas, it would have to be collected for repair. I confirmed that this was fine. Again no word from Defy. I phoned again and on the 20th the same repairman came out and repeated his earlier statement to my husband. Yesterday (3rd April) I phoned once again and was promised a call from the supervisor - still no call. I have another Defy fridge that has now also stopped working but reckon it is cheaper to replace than to keep paying for repairs Certainly the last Defy appliance we will ever buy!!!!!!!! Margaret Young Broederstroom