VODACOM STOP DEBITING ME FOR FIBER THAT WAS NEVER INSTALLED

Vodacom promised fiber, but today I am being charged for using the free LTE they said it was for waiting while fiber is not installed. i was told that the fiber will be installed within 21 working days. 3 months later still im being charged/debited for the fiber that was never installed, I canceled everything but 1 month recerved an invoice again. I am so angry, and this is a **** to people from vodacom. when i call vodacom billing department they put me on hold for more than 30 minutes until i drop the call, when i call again no one answers.