Can't cancel my Vodacom contract due to lack of service or follow-through

I have been trying to cancel the account of a relative as they are out of the country. Despite sending numerous emails and making calls, the account is stuck in a limbo where it cannot be closed because it needs authorization from my relative.

Yet despite me sending this authorization from one of their own branches months ago, they have yet to lift a finger to stop the account from accumulating monthly debt.

The level of customer service for anything besides going to their branches is non-existent.

The only thing that's constant is the harassment of a daily automated call message telling me that the account that they can't bother to close because due to a lack of action on their part is accumulating further debt, despite the fact that nobody ever authorized it's renewal.

This is what you get when signing a contract with Vodacom.