In need of a reversal

On the 5th of May someone transferred money into my account and then what happened Is I made a mistake with the account number which led to the money being transferred to the wrong account number.I went to FNB Northpark and I was told that since the person who transferred the money was using Capitec I must go to Capitec and when I went to Capitec I was told FNB needs to help since the money is already in a FNB account..I’ve been going up and down since 05 May up until today I haven’t gotten any help a whole 40k down the drain 🚮Wow FNB what an honour it is to bank with you 💔🚮mind you I had to drive to Pretoria yet I reside i Johannesburg and still I’m not getting help