Trying to disconnect my TELKOM line and adsl

On the 8th of March 2018 I went into Telkom Greenstone to cancel my Telkom line and ADSL line as we are moving. I have communicated via phone calls and email on the 6, 11, 12 and 16th of April and my lines have still not been disconnected. The new tennants are moving in over the weekend and I WILL NOT BE HELD LIABLE FOR THIS ACCOUNT FROM THEN. TELKOMS SERVICE IS PATHETIC!!!! Seems to be the only way to have this line disconnected is by not paying my account this month!!!