Unauthorized Debit order

I received a R125. 00 debit order on the first July which I don't know about and didn't authorize. Had to pay R40 to Standard Brank to track who debited my account as the reference was not familiar to me Standard Bank: Stop Order R125.00 EPIC3 RIPNEXP12477 PH0T6; from Acc. 8597. 2021-07-01. Let alone that in these trying times had to pay fee for unpaid debit caused by them. Please stop this debit as i have not authorized it.