Bad service

I mistakenly sent money to a wrong number and i askd that person to send it back and the refused saying i they will need to deduct R200 from my money that i sent to them . When the bank tried calling that person he was not answering so they say there is nothing they can do about that unless the person picks up their phone and the person is not even willing to give back my money . I regret banking with capitec because now i get to lose my money because they need permission from tjat person to send back my money i am furious because i need my money and so far the assistance am getting is very poor how can ypu say there is nothing you can do when you can be able to put the money on hold . Why cant they do something because i want that money . DO SOMETHING I CHOOSE TO BANK WITH YPU BECAUSE I TRUSTED YOU