Over debited account

I am honestly tired of Vodacom and their consistent lying and passing the buck. I was debited R3 000.00 over for a my 2gig contract this month the invoice claimed that this was an additional charge for a 3G laptop, the only problem here is that there is no 3G laptop to begin with neither did I sign up for one. No one can explain why this has happened and after a week it's still not resolved, instead I'm receiving smss on my phone with the disgrace of seeing my case being passed from pillar to post it has been handed over to 4 different departments, in another case it was reverted back to a department that it originally came from. I mean really what's going on. And as for your call centre agents and team leaders who make promises of calling back and never do is really a slap in the face for a disgruntled client, I hope you can pull my call records to actually hear what I'm talking about. I think you guys have become too big for your own good, you have forgotten what client services actually means, we have become nothing but money making machines for you.