If you registered on the SEM Wing Forum and have not received contact since registering, then you may have entered an invalid email address.
Unfortunately, if this is the case, then I am unable to contact you, so you should re-register – but you will have to use a different id this time.
Or did you forget to respond to the email that you would have received immediately following registration? It asks for further details to validate your registration. If you did not reply then access will not be granted.