Just AWFUL service

Over a month ago I app**** to return a faulty item ***) to Kalahari, which is now Takealot. They sent a courier out to collect the item several times, but sent them to my regular delivery address instead of the one I specified on then returns form. Eventually they sent a courier to the correct place after about a week. Then on the 11th of May they notified me that they had refunded my credit card. I called a couple of days later, and was told in fact a refund to a card takes between 4 and 7 working days. Afert 8 working days, still no refund. I called to ask what had happened and they said they would get back to me. They didn't. I called again on friday. The man (John) gave me some attitude and then assured me he'd definitely get back to me by the end of the day. He didn't. According to him, the refund has gone through but the proof is clear in my bank records that it has not. Every person I speak to says they 'understand my frustration.'. Well clearly they do not. I can't understand how soemthing like this can have gone on for over a month already. PATHETIC service.