no quality service standards from Defy and poor customer service

i bought a Defy double door fridge in 2017 cash at HIFI -CORP with a 2 years warranty ,the fridge started not freezing on the freezer side ,problem reported at Hifi on 27/11/2018 ,was told the matter will be resolved in 10 workings days ,the service repairman from Defy only came on Monday 10 December 2018 after I had to take time off work to wait for him ,he came and for 2 minutes ,look at it and say there is a problem with the fan and he is presently out of stock with the fan ,several inquiries, made I was told I had to wait for stock to arrive (ferns )I'm really frustrated without a fridge with no exact feedback when can I expect feedback from Defy ,their call centre made u wait for a long time then to be told they will send message to a service repairman to respond ,no quality service standards from Defy and poor customer service