Incorrect Billing and Poor Feedback

My issue is that I upgraded my DSTV account from compact to compact plus as it was advertised that an extra R95 will be added to the account. I upgraded my services on the 22 September 2017 thinking that I will get the discount as was advertised only to find that, after calling in at the call centre several times and finally getting the information I needed from the 5th call centre agent, that I was charged the original price of R489 plus the decoder insurance instead of getting the discount. I was told that I had to pay this amount as I upgraded my account before the month ended but I made the upgrade for the next month as I already had the compact plus channels for free as part of the September promotion and so I still do not understand why I did not qualify for the special price of R460. I have not received efficient service from the call centre agents as I phoned numerous times to find out why I did not get the special and why I was charged the original amount for DSTV Extra only for the last consultant to tell me I did not qualify for the special. This is very poor feedback that I got from multichoice and there wasn't any communication about this so you can imagine how angry and upset I am about this!!! I would like to get the special promotion as advertised as I was on compact and I wanted to upgrade for the month of October and so I don't believe it's fair for me to pay the original amount.

I've also been experiencing some major billing issues as my balance stands at R1018 and I have no idea why!!! Can someone please rectify this and tell me what the hell is going on with my account and to give me the discount as promised by DSTV multichoice??!!