Telkom - bad service AS ALWAYS

In February I made contact with Telkom to cancel my line for end of March 2018. I had given more than enough notice, completed the relevant forms and sent it to the email address given. Only to get a response back that my ADSL line with Mweb is still active. I had cancelled my MWEB account effective end of March as well and sent proof to Telkom of this. Surprise - no feedback. Once again i sent an email, with all proof of emails and correspondence attached in February. Again, no feedback. I have now sent multiple emails over various months, only to still get a bill from Telkom this month advising i owe money for an account i don't use or have. We sold the property and have been out of the house since February. I am feeling highly frustrated!!!!