MWeb Real accounts for Ghost users

I canceled my account with MWeb last year already (via email as provided by Mweb support) and moved over to another service provider. The new service provider came to install a new router, done the settings and A for Away. Unfortunately, due to medical reasons, I was unable to keep a close eye on my bank statements. When I looked at it recently, I've noticed that MWeb is STILL billing me for services, they even send me a "usage report"!! My new service provider, of course, could also send me a usage report. Now my question to MWeb is... how is it possible that I can utilize your services if your router is no longer connected at my house? Also, how could I have usage if I wasn't even connected (again, the router was lying in a drawer)? Then the other problem, there is NO way that I can e-mail anyone at MWeb as they recommended 1. online chatting (completely useless when it comes to the whole trail of emails I have 2. online chatting, like where is this online chat icon??? So, unless you can afford the extensive call, extremely long holding on in the line periods, you are *****ed!!! Oh... wait... they did give me an email address last year where I've forwarded my cancellation request to, but now I'm told that email address doesn't exist for quite some time now and they can't access it anymore for historic mails?? PS. Is it possible to give them a "minus" star rating?