unprofessional services from Telkom SA Springs Branch

i have put in a request to telkom (springs mall branch) on the 21 January 2018 to cancel my services has i am emigrating. i filled in all the forms required and was even given a confirmation of my cancellation but to date my services has not been cancelled. i am going to be leaving my home on the 24 Febrauary 2018 and i am worried that the new owners who have bought my house will have access to the telkom line when i am gone. So i called telkoms call center and spoke to Ondela Matyana who asked me to email her the confirmation. i then emailed her the confirmation and she responded to me asking me to fill in the documents again and email to the cancellation department. i advised her all of this was done on the 21 january 2018. she advised me that it needs to be done and services will only be cancel 30 days later. i told her i dont have time has i am leaving the country but i did not get a response thereafter. I have have also paid Telkom in full to date.

so all i need is for this service to be cancelled has i am not going to be liable for any costs incurred after the 24 Febrauary 2018 has i wont be in that house, has the new owners are going to move in. thank you