Price lock is never locked, amounts always vary up to double the amount!!

I have had DSTV since they it was launched, never any problems till i switched to price lock. I first signed up for the price lock in 2015 then it started going down hill. It was arranged that the amount would stay R849 for 2 years locked, I had so much trouble, debit after debit go to the bank reverse debit and pay EFT disconnected for a day or 2 pending if i had the patience for the 20 minute dispute. This lasted for 6 months, and then all went well paying EFT. My price lock then expired and an agent phoned me regarding the price lock, He the stated that i was behind on my previous account which i did not agree with but paid R1250 in order to apply for the price lock. I emailed proof of payment was contacted and after asking multiple times if all was in order and it was agreed. Then a month after, my dstv was disconnected i phoned again and it was said my debit was unsuccessful and knowing this price lock experience i only left a thousand rand in my account. Anyway i paid EFT for the R990 to the account and it was on for 3 days, then suspended again, gave them another call now i owe R2700 for the previous month!! Cmon DSTV REALLY. Its been off ever since and i will not connect before this matter is resolved. Feel free to contact me because none of the advisers nor supervisors can assist me, its pay or don't watch policy!