Can't get help to login to my profile!

I signed up for a new contract months ago, and haven't been actively using my number. I have passively - once a week or so - been trying to log in to the Vodacom website. My email address was used for my old number, so I can't use it. I have emailed the,, tried to call... no help! I need access to check out my billing, and would really like some contact back from them. Don't have time for this...