Unfair Practices by Tyme Bank

I’ve had enough with Tyme Bank and I need to vent. Here’s what happened: I accidentally sent money to the wrong account, just two digits off. I realized my mistake literally two minutes later and immediately called Tyme Bank. They tell me they can't guarantee that they’ll recover my money, and I get it there’s always a chance of things not working out, but that’s not even the problem here. What really gets to me is that I lost R600, called the bank to help, and they charge me R170 just to try and fix it. And guess what? They didn’t even succeed. So now, I’m down a total of R770, Yes I was my simple mistake but why a hefty charge. That’s not fair! They should’ve taken that fee from whatever they managed to recover, not from my pocket. It feels like I’m being punished for my mistake and losing even more money in the process. Honestly, who can just throw away R770 like that? This situation is messed up, and it’s exactly the kind of thing that deserves to be looked into by the Consumer Protection Board, the Banking Ombud, or My Broadband. I honestly don't feel this is good practice. I understand there should be a fee charged but if bank charges you R170 then don't promise that they will recover your money but charges you upfront?