No service, but want money

I cancelled my Apcan (now National on the 26 May, via email. Tried to phone to no avail. On the 1 June 2021 I send a email again to National and Apcan to cancel my account. I have phoned numerous times and left messages at the control room in Durban. Nobody phoned me back. In May I pressed my panic button, because I was in trouble. Nobody came out or contacted me. 3 Weeks after I pressed the panic National contacted me and said they see I have a panic. But they don't have any data on the system for where I stay, so they can't help me. Yesterday the 18 August I get a phone call, I owe then money. I must pay them. But i cancelled my account more than 2 months ago. This is very upsetting. The lady actually put the phone down in my ear, when she phoned me to pay the money. Why must I pay for services, when I don't get service. #win