Terrible customer service

On the 08 Feb 2017 an email was to renewals at sabc.co.za confirming my mother has moved in with my sister and to please close her account the new details for my sisters tv licence was also given.no where on the tv licence does it notify me to call and query to find out if documents were received. Mum then receives several calls from vvm asking for money,threathening to take the matter further.my mother is a house wife who is divorced does not work and does not receive any grants and she had to move in with my sister does not watch tv for religious purposes from the beginning of this year and now is asked to pay for something that i advised must be cancelled.we again sent all paperwork to the relevant departments in July this was now back with Sabc confirmation of documents received from no reply and i receive another message that this account will be handed over again why?i called sabc and the agent on the line was arrogant and rude,she questions me about how i cancel my own tv licence 1.licence has always been paid and never in arrears so why are we been treated as ********* 2.i sent through the notification and no responses were received where does it state the process on the renewal for cancelling of the service 3.how does an unemployed person that has given an instruction now pay for a licence that she has cancelled and provided you with the person she gave the tv to has a valid tv licence. SABC staff are ruthless and disregard customers situations i would like for you to pull the conversation and listen to this staff members attitude. Can someone at Sabc go through the documentation and sort this matter out as this is no a time waster and also frustrating