Vodacom - Please!

I've sent a fourth (4th) request to Vodacom over a period of 4 working days to have my VAT number inserted into my tax invoice - provision for this is made on their statement. I've received numerous responses and have had to verify myself every single time. Now I've been asked to write a letter on my company letterhead! Fair enough but I receive a response today from Zanele Mnguni asking me to confirm my request for international roaming - huh - where do you get international roaming out of VAT number????????????? service industries come on - I've had too much and it's only February! Please read your mail and respond correctly!