Bad Service from Sanlam and Tymebank

I'm paying Sanlam loans and I don't have any arrears with them but immediately they entered strategic partnership with Tymebank they both decided to deduct from my account 2 installments that was on 20 April. I'm still struggling to get my money back from Sanlam. When I call them they said I must wait for 5 days to be refunded I called again I'm told I have to 5 to 10 to be refunded. Now I'm struggling to get my money back. Sanlam you have bad service you don't treat your customers fairly your employees are *********** and clueless even when you called them. I have also send my bank statement that shows 2 installments were deducted but you decided not to refund me. I can't wait this long for my money. This merger between Sanlam and Tymebank is affecting my finances very badly. Your turn around time can't be 5 to 10 days to refund. I have also laid a complaint but nothing is happening.