Bad customer service, wrong billing

I was a customer until April 2018. I paid up my account and cancelled. Yesterday I decided to subscribe on a month to month basis. I communicated via the website, with typed messages. I was given an amount to pay, which I did. Then I received the receipt which charged me R 50 reconnection fee. This is absolutely ludicrous. This is wrong and unacceptable. I tried discussing this with someone on Twitter. Your agents are useless, ineffective, do not listen to customers, do not understand, and do not answer the questions asked. I want this looked into, and the R 50 credited back to my account. Every time there is an accounting issue with DSTV it takes months to resolve. This is *******.