Forced upon top up product which can't be cancelled

I asked you to cancel my subscription as I am no longer using the telkom Sim card that I received along with my CELLPHONE in 2018. The lady that assisted me stated I need to cancel it online. But guess what??? YOU ARE not allowing me to cancel it online either so where the F! MUST I CANCEL IT??!! And the nicest part is that I was also informed the service was suspended due to NON PAYMENT!!! what a load of bull please fix your IVR system coz obviously it gave me the wrong info and ****ed me off further!!! I stopped using the Sim when my cellphone was ****** in August and the Sim card was tossed away by the person who stole it. Do you now expect me during this pandemic to get off my busy days at work to stand in a que to Rica a Sim card just to have me cancel it again YOU MUST BE CRAZY OR MISSING AN ENTIRE TOOLBOX I even tried re-activating it online today in order to send a request to cancel it but NooooO please fix your stupid processes as my 24 month contract was completed 2 months ago and now you not allowing me to cancel my Sim card billing which I haven't been using since August which in total amounts to R1100 I have been billed for minutes and data I have not been using!!! Please ensure that this is fixed and my subscription is cancelled by end of this week it is not my fault you have a ****ty system! I will take you Ombudsman for forcefully making me bound to stay with a service I dnt need.