VODACOM IS A ****

I have a caller tune which I have no idea how I got subscribed to. Vodacom call centre directs me to self service or disconnects my call. How on earth can am I expected to remove it without a help of a consultant. I have followed the prompts to unsubscribe with immediate effect but it doesn't go away. Vodacom is just the worst and it's only the matter of time until I cut ties with them completely! I have a back up sim card from another provider because vodacom is almost useless on it's own! I'm very irritated by this!