Unsatisfied

I am very disappointed in my bank Nedbank an amount of R2007.07 was debited from my account on the 24th of August 2019 from Old Mutual. I went to Braamfontein branch. I was assisted by a consultant who check on the system and told me the money can not be reversed I must go look for my money at Old Mutual. I went to Old Mutual and was told that they do not know me. This is really unprofessional that my bank can not reverse money that I was not in debt of and Old Mutual who says they do not know me, but the system at the bank shows they debited my money. This is all just ********** and I want my money back