Ongoing struggle just to cancel my account

I don't know where to begin, I have been trying to cancel my account with this ISP since December 2015, logged tickets on the website asking to cancel the account, no reply no correspondence, nothing.<br> <br> I have not used the account since middle December 2015 up until today, yet I'm still being billed after various calls in an effort to cancel my account to a support number that just keeps disconnecting you, on 7th January 2016 I phoned that number 14 times with no success as listed on my telkom itemized billing, I have used the ticket system on their website to cancel the account, no response, no reply.<br> <br> Today on March 10th 2016, finally a human operator on the phone after several phone attempts only to be told they know nothing of my cancellation and this after going through a heck of an email and link to a cancellation form online which is listed nowhere on a website in January, filled it in, still being billed for the account... seriously? Once you get billed by openweb, you'll be unable to cancel and support is none... <br> <br> The operator pleaded ignorance of what is going on with the account and will investigate... I have zero faith in that promise...