Hi there,
You can try visiting the student center during enrollment sessions next week and ask an ambassador to help you with your issue, they are open 8:30 - 3:30 usually.
If they are unable to advise you can try visiting the IT services in the Lancaster Library (from 9am weekdays) and asking them to help you set up your email/ find your username - I would advise going early to both of these as they can get busy.
Hope this helps
Amber
Coventry Uni Student Ambassador