Absurd

I enjoyed using rain. HOWEVER, I specifically disabled my plan at the beginning of August and sent them an email stating that I no longer want to make use of their services and that they should deactivate my sim to which I did not get a response until a few days later when they said the issue is sorted. Fast forward to this month they are billing me. I am current in back and forth email argument with them. How is one expected to pay for services they did not make use of? It’s absurd