Srivener will not recognise my serial code

I’ve been using the free trial of Scrivener for a couple of weeks now.
Today, I purchased the full Mac OS X package.
However, I get the ‘invalid serial code’ box when I put in my name and registration code.
I’m cut and pasting it exactly as it appears in my email, no white spaces.

I don’t know what to do.

Also, I’ve emailed both sales and Mac Support email addresses about this, but have not had a reply