Poor Service

I had incorrectly made payment to the wrong bank account just a few minutes ago. The bank account was a Nedbank account. I immediately contacted the bank to request a reversal. I spoke to an agent named Grace who advise me that it will cost me double the amount i paid incorrectly to have the money returned back into my account. This is poor service. As a client i expect better service from an agent. It does not make sense that i would get charged to get refunded my OWN money when the money did not even clear into the incorrect bank. Can someone please CONTACT ME URGENTLY!!!!!!!!!! I would like this resolved immediately.