Keeps taking my money for mistakes on their side

In December standard bank made a mistake and took a lot money out if my cheque account and transfered it to my credit card to settle the outstanding amount. They were not suppose to do that and I was not behind on payments I was actually paying it quicker than I was suppose to. I transferred some of it back and was told I would not be charged for the transfer but I was. I phoned and was told the money would be refunded but it wasn't so I went to the branch and after that the money was refunded. Now a month later they took money from me again. I suppose I will have to phone and/or drive to a branch again to get my money. So I have to use my money on diesel and/or airtime to get my money that the took back, a strange way to do business. Think I'll try FNB if this continues