Contract Cancelation

I had a Data contract that pays R668.00 for 10G per month, expired on 16/09/2022. Every time I try to cancel my contract they come up with some ****** tricks to keep my contract going. It's been +/- two years trying cancel this contract but hey I am still paying the damn R668.00 for a 10G Data. The level of incompetence from their consultants is annoying.