Telkom disgusting customer treatment.

After giving Telkom a 30 days calendar notice as per the requirement on the 30th of July 2020 and given Cybersmart (my ADSL providers) also a 30 days calendar notice on the 30th of July too, which means that my ADSL would disconnect on the 1st of September 2020. I received an email from Telkom on the 17th of August (17 days after sending my cancelation request online) stating the following [[Dear Valued Customer, Thank you for the cancellation request online, case was received on Telkom side but we are unable to cancel the landline ***) as you have an ADSL with another ISP. Please request your ISP to release the line after which you can request a cancellation with Telkom. TelkomSA . ]]. How nonsensical is that? It is outrageous that they want me to have my ADSL to be discontinued so that Cybersmart breaches their 30 days notice and it is outrageous that they send me a refusal to cancel 17 days after my submission to cancel my Telkom line. No wonder people are leaving Telkom in droves. Based on the above info, I therefore reject your refusal to accept my 30 days notice.