Refund Request a mission with FNB

On Sunday An Amount of R300 was deposited into my daughter’s account, unfortunately 1 digit got mixed up , now FNB refuses to check where the money went into , or where the account it went into , even exists. An agent advised that she pay R325 fill in a reversal form , & it might not be successful. What nonsense is that . All am asking from FNB is to check if that account even exists, it might be dormant & money be directed to the correct account as proof of payment is there. Instead they refuse. Basically banking with FNB is useless Bcos no assistance is given what’s so ever .