I have been ****med R2081 by Vodacom

I rented a speed point machine from Vodacom and I used it only 2 weeks, first week I got payed all of my money into my account and second week I got payed and there was a short payment of +-R2000. It's been 4 weeks since I waited for Vodacom to pay me back my money but every week I speak to different consultant and they keep on promising me I will get payed by end of the week. Vodacom is a ****. I need my money back cause my business is suffering.