Installing/using trial of Illustrator

Hi there,

I've just downloaded Creative Cloud, so I can trial Illustrator prior to purchase, but the problem I'm having is upon opening CC, it asks me to first verify my email before I'm allowed to continue.  Sounds simple enough, except that it's asking me to verify an old email address of mine and not the one that I actually used to sign up with Adobe.  I've tried uninstalling any adobe programmes on my mac that may have links to my old email address and then re-installating CC, but no luck so far...I've googled and google this, but have found no solution...any ideas?  I'm tempted to just purchase the programme to get around it, as I need it for a course I'm doing, but am worried that the same thing will happen on the full version as well.

Cheers in advance!