Telkom Cancelation (They are ***** and *******)

Not a good day

I sent a mail to Telkom in November 2017 to cancel my line as of 1/1/2018 with the correct form attached. They are still billing me every month and I have sent four unpaid working days in their branch and HOURS on the phone. I have a case number since August 2018 and operators claiming they will phone me back and that the invoices for this year will be subtracted, YET I still get invoiced every month.

How do I get the money back? I decided to pay the outstanding amount of close to 3k just because I don't want to get blacklisted.

I REALLY REALLY recommend that nobody EVER do business with this excuse for a company that is out to **** you

TELKOM IS A ****!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!