horrible service from DSTV and subscription cancelled but debit order always goes off on time

My grandfather has been a premium client for more than 30 years, he recently opted for the price lock promotion, it was delivered on 4 April, no other instructions were provided, he asked the delivery company what he needs to do they said wait for DSTV as they are informing them that they have delivered, he waited for a month, then I called and was informed that he was supposed to call in when it was delivered, this was not communicated, needless to say, we continued without complaining and an agent was dispatched to install on 16 May, my grandfather visited Gezina branch and wanted to pay the insurance and was told not to by a Tebogo, he advised that the decoder is insured for the next 24 months this is not necessary, the debit order for 953.5 went off and then again another debit order for R49.5 went off on 1 June, on the evening of 1 June, as my grandfather returned from a trip visiting family out of town for the day, he found his DSTV was off, with error please pay subscription cancelled, furious he called Multichoice and held on for 2 hours with no assistance, the lady, Nikita was rude and said she cannot help he must pay. on sunday morning 2 June, I called DSTV and spoke to Casmee, she advised the system is offline, I called again and Tracy advised that both insurance and subscription was outstanding and she cannot assist at all. I called again and spoke to Pumelele, who was helpful and knowledgeable and advised that the insurance is outstanding and the debit order was received, however, she will assist by making the note that the debit order went off and switch it back on, which she did, I want to commend her for her serice, with the 4 people we were assisted by she was the only 1 who said she can assist and listened to his story, my grandfather is 80 years, his debit is still standing and again today he gets an sms stating he owes DSTV they will cancel subscription by 17 June if not paid, what is the ****** issue with DSTV, his debit order was never amended to the price lock amount which is supposed to be less than the normal full subscription he is currently paying, can someone pls assist before it is switched off again, contact him urgently on ********** 272 or myself on ********** customer nr ********** C W K Seckle 313 Jacobus Avenue