I want my money returned

I've found out last year 2024 on March that someone has open a policy under my name at Old Mutual and an amount of R450 has been deducted since September 2023. I reported the matter to Old Mutual last year and I was told a ***** case would be open, they have managed to found the person who has been commiting this ***** and they have stopped deducting money from my payslip on February. However, they not paid me back paid me the they were deducting from 2023 as they promised.