Dstv over billing customers account for something they advertise as a special

They advertise dstv for option on special for March. Then you activate and pay..just to find out when you uninstall again they all of a sudden charge your bill for more than R600 for one of the lower options...for that money I could have gotten a better bouquet from DSTV. This is daylight ******* . That's when you eventually can cancel your subscription. Will definitely never use DSTV again