Refund for over charging going on 15 days

On the 1/10/2015 I received a call from Absa regarding a refund that was due to me for over payment of my credit card a few years ago. I sent the documents to them on the same day. I have made several follow up calls and they only confirmed that the documents where received on the 12/10/2015 as they have a back log and I have to wait another 7 - 14 working days for payment to be made. You already over charged me in access of R4000 and now still make me wait for money that is rightfully mine. <br> <br> The documents where sent to [Email Removed]<br> <br> Please help with processing my refund as its not my fault I was overcharged and Absa cannot manage its volumes.