Telkom ******* continues

At the end of January I requested my ADSL to be cancelled. I expected it to be cancelled by end of February and last payment end of March. On April 5 I sent a nother request to cancel my internet which had been suspended as I didn't release the payment waiting on confirmation of final payment. Since then I've been receiving monthly bill even with increased VAT monthly. How am I supposed to pay a bill for a service that was supposed to be cancelled? I haven't had a job since December 2017 and I am not paying for a cancelled/suspended service.

Today I received another text that attorneys will collect the outstanding payments. How pathetic, call center agents never get back to me so what the hell do I do?