Reversal of funds

Am having the same problem fnb please assist, I made payments on the 27th of March 2019.to another fnb account the account is correct but the name had a spelling wrong, so it went to another fnb account. And the bank is not helping saying they cant reverse ,it was done through the fnb app and I reported immediately atleast the funds would have been withheld before the owner of the account withdraw the money..I find this very suspicious and unacceptable.....and the cal center is not helping..pushing me from one call center agent to another, like they dont know their job description..fnb please attend to this...