You can register through the following page:

After you submit your registration an email will be sent to the email address you registered with, which will include your Bonus Pack.

If you don't see that email in your inbox,  most likely the email has been filtered into your spam/junk folder directly. Please kindly check if that is the case.

If you had already registered in the past and you receive that message when you attempt registration, you can re-submit your registration one more time in order to receive the Bonus.