terrible service and no follow ups

I have a defy side by side fridge freezer<br> the problem started around mid January where the warning light would be flickering n the freezer stopped freezing<br> I logged a call with defy and the technician came out after 4 days to see to the fault, according to him my fan was sticky so he cleaned it out. and told me to monitor it and if anything happens I should call him. it was fine for roughly 2 weeks and then the problem started again. I then called he technician<br> but he kept telling me how busy he was etc, I tried phoning him a few more times and 2 weeks passed and this caused all my frozen veg and meats to go bad as the freezer lost ability to freeze and even cool. I then decided to log another call with defy and when he came out this time he said it was the fan motor n he replaced the fan motor charging me R684.its now 2 weeks again and the problem is back. I called defy once again to complain and spoke to the manager who then sent the technician an email to follow up on the job and they told me he would contact me.this was done on the 10th of march 2016 and still no one has contacted me with regards to this matter.once again I lost everything in the freezer due to this!