Unfair practice by RAIN mobile network provider

I canceled my RAIN service in 2022 and never used it, but RAIN mobile service network provider is still chasing me up on payments as if I still use the account. I even settled an amount of R559 last year via Easton-Berry attorneys as I was told that it's a cancellation fee that was outstanding. This is terrbile! Even this morning I spent a lot of time trying to get through to RAIN. I also called Easton-Berry attorneys who confirmed that I settled the amount that was claimed to be outstanding.