Poor service , staff needs training and theft

Since October DSCT Multichoice has been charging me R1010 for my monthly subscription after i chose the R879 option for 2 years. every month since then i called in and the agents are confused as to why im being charged this amount, some agents keep adding insurances to the amount that i never agreed upon, other agents state there are other benefits that i never ever added to my subscription. i asked to be called at specific time due to work, but im either not called back or called back days later and never at the correct time. Yesterday i was called by a lovely guy Simphiwe Khanya who resolved my issue with such excellence, yet this morning i was still debited the incorrect amount. I called Multichoice this morning twice and both agents had no idea as to what i was speaking about, and they were very confused and again giving different possible answers. Are there no notes made on my profile, are calls not recorded, are my emails not saved to my profile? i didnt even want a refund because Simphiwe Khanya was so excellent. I want only Simphiwe to call me. he needs to be promoted actually and become a trainer. And now i want a refund of the 3 or 4 months of the additional R140 that was debited from me.