Vodacom impossible to get proper feedback

I logged a call with Vodacom regarding an issue I had with an item being added on my bill. it has been a week with no feedback! Your call centers suck and informs you they will get back ASAP but never the case! and going to the Vodacom shop also doesn't help now what do I do? Pray and hope after years of supporting you guy's I get better service? Should have went to MTN, CellC maybe they care about the customers.