Web Africa Cancellation

Still paying for my cancellation since last year November. Had x2 cancellations mails confirming my cancellation. But every month I get a sms or call my debit order failed. On my “customer zone” I do not even have any services with Web Africa…..but I still have to pay? No services no payment guys. The router has been inactive since last year August. And I am still paying my account because customer services need a month to cancel my contract. Every time a different story. Now I get phone calls from My Broadband because Web Africa owes them money and I have to also cancel my contract with them. I paid my dues even for 6 months using another service. Just let me go please.