This can happen for a few reasons:
Incorrect email address:
If you've entered your email address incorrectly when creating an account, you won't received a confirmation email and then your correct details will not be recognised the next time you try signing in. If you think this might be the case, please email us or contact us on Live Chat with your name and email and we will do our best to solve the problem for you.
If you have forgotten your password, please visit this link and click "forgot password" and enter your email address to reset it.