Absa deducts unathorised payments from FNB acct

An amount of R820 was deducted from my account, I don't recall authorising this transaction - please reverse the transaction.<br> <br> Details below:<br> Transaction Description<br> Code 5234 <br> Description Magtape Debit <br> Category Payme <br> Sub-Category Electronic Payment <br> <br> Customer Service Information<br> User Code 3941 <br> User Name: Absa Bureau Services 1 User <br> Contact Number (***0)70