Dstv Discount Dispute

I responded to the Dstv Compact plus promo for 2 months you will pay R460. I sms Upgrade to 31066. The Upgrade has taken place but the discount was not implemented, therefore my balance was more than R600. I called and emailed *** and no once has resolved my dispute. My balance should be R555(Dstv compact promo R460 + R95 Extra View = R555. Please correct urgently as the Promo ends in September. Please contact me on ***