Pathetic DSTV

My mother and father had DDTV for the last 15 years. My father had it in his name and debit order on his bank account. My father passed away on the 4th of August and the next week we contacted DSTV to change ownership and banking details. After a lot of calls and mails, it was done but DSTV took money from my dads acvount as well as my moms account. After few calls, the money was paid back in my dads account and mother received message that she is now on their data basis. In meantime she came to visit us, and when she went back home, she only had signal on the secondary decoder and not the primary decoder. After many calls and visiting the website, NOBODY could help us. All that needs to be done, is to reset her signal and switch it on! But nobody at DSTV seems to understand that. My mother has now paid for this month, but does not receive any signal.