Poor Service and unfair billing

Standard bank is ridiculous, I'm writing this on behalf of my fianc?, the way they are treating him right now it's so unfair and disgusting. He was unemployed for almost 3 years and his accounts were on hold until he finds a job, when he was employed which was a couple of month back he first went to one of their branches to get details and they gave him numbers to call and he tried a couple of times but still couldn't get through, he got paid the 1st time and they took half of his money, fair maybe he needed to pay, but he then again tried contacting them it was a bit too much as he just got a job and now he is permanent and just after he got paid they debited half of his salary R4689.89 without even warning him, it's totally unfair this guy is still trying to find his feet but they keep on taking a lot of money, been on the line now trying to call them again, I called the credit division and they told him it was handed to the attorneys, we called them attorneys told us it was sent back to them and when we call again the legal team they couldn't find his details, how is this possible though? he is so upset that he wants to change his bank cause standard bank is just been ridiculous