When registering a new user profile using the GMetrix Client, you get:
It is generally best to register online on the Student Portal but, from this screen you can click "Back" a couple of times to review the data that you have tried to register. For example, make sure that your password is at least 7 characters or that email addresses/usernames are properly formatted.
Phone0845 399 1551 (UK)
01 293 2924 (Ireland)
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Monday - Friday