Problem cancelling Telkom ADSL and home telephone line.

I cancelled our ADSL line with 30 day notice period ending, 31 May 2021. I received sms notifications that the case was closed BUT the line is still active. We are moving soon and needed this to be resolved already, yet nobody is coming back to me.

How can Telkom send a Closed status notification for something that is clearly not done as requested? ***, ***6 and ***0