Double Notification Charges

I recently sent in a complaint to Absa regarding the fact that they have been charging me double for my NotifyMe. They are also sending me two messages for each transaction. They received my complaint but it took almost a month (turn around time is supposed to be 5 days) to resolve it and they eventually refunded me the money. They also assured me that the error had been rectified. Today, I checked my statement , and again, they are charging me double. I used to be employed with Absa and three years ago, myself and colleagues notified the IT department of this very same problem on several occasions. It seems that 3 years later, NOTHING has been fixed. This was a constant problem I experienced where problems were reported to IT and hardly ever fixed. The problem here is that many people don't check their statements because they trust their bank to make errors. How many people have been charged double because of this problem and how much is Absa gaining in revenue due to this problem? I would like Absa to please refund me for the double charging of my NotifyMe since the last calculation on my last complaint. Please do not send this complaint to my branch as the problem lies with the IT department and their cost centre should be charged. The branch cannot be charged by doing the refund as they are not responsible for the error. I would also like confirmation from Absa that the error has been rectified and I want assurance that this will not occur in the future again.