An email containing your enrollment dashboard link is automatically sent to you within 5 minutes of your order being placed.  Also, once you have created your enrollment, your login details are sent automatically within 5 minutes.

If you cannot see these emails in your inbox then it is likely that either you have accidentally made a typo in your email address or the message has been redirected to your junk/spam folder.

Check (and refresh) your junk/spam folder.
Check that you have provided the correct email address.
Check if you have an email forwarder or filter that could be moving your messages elsewhere.

Please note that some email clients require you to manually refresh your junk/spam folder to show the latest messages.  For example: