@keniv :-
I'll agree with 6502coder here; it really is nothing to worry about. As mikeslr points out, about all they use your email for is to send you occasional reminders about product upgrades, and sometimes to offer free 'font packs', etc. They don't bombard you with crap, like some I could mention....I will give them that.
I think you'll find that if you've ever used their products in the past, they've got a record of previous email 'key requests' and the like. That's why some of us don't get the product key request box come up.
It's not a problem, mate; you can rest assured of that.
Mike.