TERRIBLE SERVICE!!!!

I have purchased a defy invertor aircon from makro in Jan 2018. Had a fault with the LED display this year and placed a warranty claim in Feb 2019 through the defy website as this is what makro advised me to do. Due to no communication from defy i have reported the fault about 4 times on the website. i eventually get a call saying they working on it. after calling numerous times they gave a guys number by the name of Anil who supposedly was attending to repairs. everytime i called him he said his waiting for the part. After some time he eventually tells me its been moved to Servisure and i must call them. so i called Servisure and still no result from them. Then 1 of the consultants told me that a woman by the name of Denise is handling my case. I had to call Denise every single time to find out what is going on. She is the most *********** worker i have ever came across. She lies about everything. At 1st she said she working on it. Then she told me a guy by the name of Tommy is working with it. Then she said she sending out a person to look at the aircon. When i called today she said she had a meeting with Tommy and now they getting the part to replace. This is a very frustrating as i have been waiting from feb for this aircon to be repaired!!! I receive no communication and no service!!!