Charge me for what I've watched, Dstv must really fall.

I'm now really fedup with you guys, I ve uprgarded my account *** package of compact in the middle of the month to Premium, the person that assisted me advised me I will pay R300 extra, but now I've been charged R1609, 67, after I had alot of problems when I've done all this changes, while Ive been experiencing all this problems Ive called gthe Dstv how many times with out having mybproblem resolved on time, Ive even advised them cancel everything entirely because I can't view the Premium package and they going expect me to pay, which they did today, I just want to have thr difference payed back to me and please cancel my compact package totally for now and change the Premium package to compact now as from now today, because I'm not going to pay for entertainment I didn't receive in full.