Fnb has the worst service!!!

I am so appauledat the service from Fnb since they went digital on most services.. I made a payment in July which was meant to go to Namibia.. Acc number was correct and client name..but I did not choose the country Namibia and therefore it went into a person's account here in SA.. Yes!! That is correct.. There is exactly the same bank Acc numbers in different countries with the same bank.. So I did payment reversal ect. Ect.. I have done this now twice..have been in to the bank 3 times..and nobody can help me.. I just keep on getting ref nr when I log the payment refersal, to never hear anything back again.. And the best is.. I am a supposed private banker.. Laughable.. Believe me there is no extra help from Fnb if you are a private banker!!!