Make it make sense (cents)

Contract cancellations, please explain it to me like im 5 years old.

I requested cancellation of my contract on 30/10/2025, they tell me its too early, contract ends on 7 December 2025, so they will charge me on 1 December 2025. I call back on 10 December 2025, they tell me its too late, they will charge me again on 1 January 2026. The contract will therefore only terminate from 31 January 2026, nearly 2 months after the original end date.

Why am I being forced to endure this "contracted" hell, for a service I do not want, where I explained everything to all consultants involved, and Vodacom not acting in the best interest of its clients.

I am more than sure that there will be an excuse for this to be dragged out even longer when the time comes.

Just please, explain it to me like im 5, why do I need to keep wasting my hard earned money on a useless services?