Fed up customer

Vodacom service is very poor, I'm not happy at all and I want to cancel all my contracts with them. One of my numbers was upgraded without my consent and I logged several complaints with Vodacom but no assistance till today, I've been promised that a Team Leader will call me but to date no one contacted me, it's been a 2 weeks now. Today I tried to do a follow up on my side and spoke to a consultant by the name of Gugu who couldn't assist me also and told me that she thinks they requested recordings for this upgrade. I'm sick and tired of being treated like this, rather move to another Service Provider who will appreciate my business. I want someone to call me and assist with canceling all my contracts at Vodacom.