Poor and incompetence Services

I need help, I am Estate Agent and I am on prepaid by choice, I am currently submitting to Sars and because I am commissioned based earner,Sars requested that I submit my cellphone expenses from 2015 February. I have called Vodacom Customer line / Customer service several times requesting the statements but no luck. Have been referred to Vodacom Shops and they are referring me back to Customers Service line. Who should be able to assist me? Am I asking too much? Bear in mind that I have been with Vodacom for 15yrs but the Service i get is very bad. I need assistance urgently....