4 months and no refund or return

Hi, I have placed an order for a complete hikvision 16channel cctv system on the 3rd of march 2020. The 2TB harddrive in the package was dead on arival and I put in a request for a return. The harddrive was collected and booked into the takealot warehouse to be checked and refunded or returned. Today is the 24 june 2020. So it has been almost 4 months and I have not received a return or a refund. I have sent more than 20 emails, called almost 20 times and given them 4 months to sort this out and yet nothing has happened. Very very dissapointed. Will not reccomend buying from them especially if it is electrical components as they do not intend of givving a refund or return. Utterly patchetic