Overcharging on Account

I took up the offer of a free DSTV explorer when upgrading / signing up for a 10 Meg ASDL line in December 2014.<br> <br> My February Bill had an adjustment amount of R2 103.52. I called to query this amount and a case was created (***). This case was logged on 9/02/2015. I called on the 16/02/2014 and then again on the 02/03/2014. This time I was told that the amount will be corrected in the new bill.<br> <br> I received the new bill on the 07/03/2014 and this amount now shows as an outstanding amount. The issue has not been corrected and I again tried calling 09/03/2015 with no success at all.<br> <br> I am becoming so frustrated and really don't know how to resolve this issue.