Fixed Line Cancellation - No confirmation received as yet

I requested for my fixed voice line to be cancelled on 11 Aug 2017 and have only received the auto email response so far. The mail states that "Your request will be attended to within 21 business days. We will endeavour to contact you to verify the information provided and/or confirm cancellation/retention options available." and I have not been contacted yet to verify the information.

I expect that Telkom WILL cancel the service within the time stipulated and as per the 20 business day notice. Please note that I will not be liable for any account thereafter if Telkom does not fulfill their obligation to cancel.