If you are having problems with receiving your activation link try the following first:
1. Check your spam/junk folder. On rare occasions it goes in spam based on your spam filter settings.
2. Did you use the correct email without a typo? If its not in junk/spam then the chances are you typed it in wrong. Try registering again and see if it accepts your email address.
If you are still having problems then drop us an email here and we will look into it straight away and activate it manually for you.