Telkom contract cancelation

I have had an issues with canceling my Telkom LTE contract for the past 2 months now. The process is quiet tideous and when i call their call centre i am told i must go to the store, and when i go to the store i am told to do it online and then when i do it online it's another never ending loop which is not clear..while all of this happening my account is still being debited 2 months after my contract has expired and all the Telkom calls i get are for upgrades which i am not interested on.

What other option do i now have to cancel? As i don't want this product anymore and it's beyond my contract and also i don't want to just not pay as it will affect my credit but all in all, i am having a very unpleasant user experience. Getting the internet was super easy, i don't understand how cancelation has to be such admin.