Horrible Return and Refund experience

I bought a fridge online on the 26th of November 2024, when the fridge was delivered 4 days later, I was not happy with the size, I could see from the small box and the litres written on the box, I did not open it at all on logged a return, I battled for a month for the fridge to be collected, and now I am battling to another month to receive my refund, I call every single day and no one ever calls me back, the amount of inconvenience has been so painful and Makro customer service is so bad, it cannot take so long to process an unopened return item, stop using third party suppliers and then hiding behind them to avoid taking accountablity.