Absa Bank duplicated transactions

I've been with Absa for a very long time. A week ago I had an incident, Absa duplicated transaction and charged me twice for transactions that were already debited. I called their call centre, I went to the branch and an email was sent to the duplicate department. I was advised to wait 3-5 working days, and yet Absa has not responded. I have sent a follow up email and no response. Absa I want my money.