Debitting even though I've cancelled

Dealing with you has been a total nightmare!!! I have cancelled my subscription with you guys but you keep on debiting. What more do I need to do to get this cancelled? I have confirmation from Nolifa Roshikomo that the subscription was cancelled so I do not understand why I’m still being debited. How do you charge me for a service that you failed to render? You log a call for the support team to assist and you only get a response decades later but surprisingly when it comes to debiting you don’t waste time. I would like to have my money refunded back into my account and this cancelled.