Billed incorrectly for ***** that took place at DSTV

My services was closed on the 7th May reason I was told that I owe more than R1600 which I back to differ I was explained that I took contract in 2017 for R149 whereas I logged a complain that someone a technician Accredited number ***8 MC installer stole my decoder and exchange it. Someone from dstv called me in 2017 also to confirm this that my decoder is ****** kindly check the notes on your system and the services was cancelled since 2017 November how come I am now owing service from 2017 – 2018. Since 2017 I have not used the dstv service only now when I relocated to Northen Cape I installed new decoder and paid R295 as my new premium just after 2 weeks my services are now closed I need someone to envistigate this and to reconnect my Dstv since from the 7th May I am not able to watch TV. I paid even now on the 20th the normal premium still services is off Customer no ***3