Account still active and it's not been used.

I have complained about Vodacom sending me statement saying I am owing them whereas I paid them in June 2019 and they did not get to me about my complain. So I have paid them 460.00 and I HAVE SENT YOU PROOF OF PAYMENT. NOW VODACOM I DO NOT USE YOUR SERVICE ANYMORE AND I HAVE NOT USED IT FOR ALMOST A YEAR NOW. CANCEL YOUR SH*T. REMOVE YOURSELF OFF MY ITC PROFILE AND NEVER EVER AGAIN THINK OF DOING BUSINESS WITH ME...THIS IS THE LAST MONEY I WILL PAY YOU. I HOPE YOU UNDERSTAND ME..