DSTV incompetence

DSTV has been running some rewards competitions on their App and I won a free subscription in May when I played their "spin the wheel". We therefore did not have to pay our June subscription as I had won a free subscription for the month, I even checked the account balance on the App and no amount was due to DSTV for the month of June. I then only paid my usual subscription fee in July which was due by the 2nd of July and there was nothing concerning, the amount sue was as expected. However, I got a shock of my life when I checked the account balance for the month of August. It shows that I owe double the amount I usually pay for their subscription I.e. I normally pay R500+ but then for this month it appears that I owe R1000+. I enquired to DSTV via Facebook messenger and they assured me that the matter is being resolved. It has now been a week and a couple of days and the issue has still not been resolved. My account is due today, August the 2nd, and I cannot pay before the matter is resolved. Now I wonder if they will cut their services as a result of their own INCOMPETENCE. Multichoice is failing us!!!