OK Funiture Ceres and Hisense bad customer service

In December 2020 my mother bought her a Hisense Fridge at Ceres OK Funiture cash. Fridge was deliver the next day. The fridge wasnt working. It switch on, but never make cold. My mother and I reported the issue to Ceres OK funiture and told them that the fridge doesnt want to work and that they must collect it. She also told them that she wants to exchange the Hisense fridge for a bigger Defy fridge, because she believe that Defy products is the best if it comes to fridges. They told her that the repair team of Hisense must first come out to have a look at the fridge and after that they will come and pick up the fridge and do the exchange. Its been more then month. The broken fridge still standing in our house. We lost more then R2000-00 cold food that was in the fridge. As still on today Hisense repair services never showed up. I reported it several of times at Ceres OK funiture and my mother also reported it to there manager. They promise us every week that the issue will be dealt with and that they will solved it, but they never solved it. My mother bought us a fridge to use, not to stand in our house as a museum item. Ceres OK funiture we always supported you, but at this one you disappoint me the way you handle this matter. Very poor customer service!!!