Taking advantage of the elderly. DO BETTER!!!!!

Why are yall taking advantage of the elderly. I took over my dad's subscription because he is a retired 65 year old and made sure to change all the details. Why is your call center still calling him selling him deals when the number that's there is mine. He is old and I have told the call center multiple times to stop contacting him as he is old yet you guys still do that why. There a new charge on the account now because yall sold him something he does not understand. You guys have lost so many customers and yet you try and **** the ones that are remaining. What kind of business practice is this. Someone please contact me and sent me the full bill coz the one on MyDstv app makes no sense. Please sort this out before I just cancel the whole subscription coz niyadelela manje