No Customer Service from Vodacom

I do not hold out much hope Vodacom will wake up and comply. For months now I have been requesting Tax Invoices for the Companies accounts with Vodacom. I even went as far as sending a registered letter to Mr Aziz. The customer care numbers are either discontinued or too busy call back. When I did get through the consultant cheerfully send my more of the same STATEMENTS WITH NO INVOICES attached. Should I complain to SARS now because they the ones who require companies to have copies of Tax Invoices on file. Sadly I believe Telkom owns more than 50% of Vodacom so switching may not resolve the very poor customer care service issues. Anyone any solutions - please.