Billed twice on statement

Good afternoon<br> <br> After recieving my Edgars statement i noticed that I was billed twice for the exact same amount at the exact same store on the exact same date.I knew that was a query.I called the call centre and was told to go back to the branch to rectify.I spent 90 minutes at the store only to be told that i need to return at another time which i declined so I left my contact details and was to be contacted once rectified.I called the call centre again and spoke to Zanele and was told that the transaction would be reversed.Until now i have not receieved any feedback.This is a huge amount that has affected my instalment and i need it to be rectified urgently.