Vodacom customer service is disgusting!!!!!!!!

Vodacom customer service is pathetic! I had an issue with my October and November billing/Statement and no one seems to know what they doing. I first spoke to Themba Mongwe on the 21 of November who was supposed to assist me by amending my statement as it appeared very high and I was not happy with the amount but he never did his job! I have spoken to more than 6 agents including a customer service supervisor Diana who is also *********** as the rest of the agents in that department. She has never bothered to call me back and deliver as she had promised! I am disgusted in how my simple issue has taken weeks to be resolved.. We are approaching month end and they haven fixed my issue which means they will bill the amount I disputed last month! I’m very unhappy and feel let down by VodaCom.. I’m going to escalate this issue further should my bill not be fixed this month!!