Completely frustrated with Vodacom

So now I wrote a review on hello peter last week about Vodacom, Joyce phoned me from Vodacom - seemed like she knew how to fix this problem said she would send me an email but no still a week later nothing. I am so fed up with having to fight Vodacom a battle of not knowing where my R7000 has gone and having to fight with debt collectors! Please advise what else I can do.