Makro online store has the worst customer service

Shopping online with Makro has been the worst experience of my life. I bought a fridge with them in October that was supposed to be delivered by the 6 November but never came. I have since been contacting the store by calling, emailing, whatsapping and even their social media platforms for the entire month with no assistance. All I keep getting is them gaslighting me and telling me they will escalate my issue and that they apologize for the inconvenience. For the entire month. I have been trying to cancel the order and get my money back but nothing is happening. It is now December and still nothing has happened I am just feeling like a stalker because I call and email every other day. They have even stopped responding to me on the whatsapp number.