Vodacom Fiber Billing

By far the worst customer service ever experienced. I have been in Contact with their billing department since November last year. Got billed wrong in December, then they said issue was fixed and now I'm getting billed double. I have been asking to speak to a service manager as their website said, but never get hold of anyone. Or the consultant log a call back from a manager and this also never happens. 2 things wrong in these last lines. (False advertising due to not being able to speak to a manager as they claim and lack of respect for customers) Either Vodacom is the worst company to deal with as a customer or the people that work there is completely ***********.