Worst customer service for the request to return chairs I purchased online

I received the worst customer service for the request to return chairs I purchased online. I first logged my return on 12 May 2023 via Makro website (Instore returns are not allowed for online purchases). I only got a reply from them on 16 May, informing me that I will be assisted by the support team soon, since then nothing has happened. I've sent follow-up emails and no one has bothered to reply to my emails or try to assist me, they decided to ignore all my communication to them. I've also called the contact centre to see the progress of the request, my last call was 25 May 2023 and I was promised that my request will be escalated and I will get assistance ASAP. I haven't received any assistance till now. I've logged a complaint last week on 1 June 2022 and still no-reply. This is really the worst customer service that I've come across, since purchasing items online.