Upvote:1
A Tier 4 visa application for a Canadian is unlikely to be refused for a few overlooked trips or border crossings into the United States.
As you've already been interviewed and your biometrics provided, you could contact the UKVI help centre, a fee-based service, if it continues to worry you:
Contact UK Visas and Immigration
You can call or email English-speaking staff with a question about your application.
By phone
Telephone: 00 44 203 481 1736
Monday to Friday, 24 hours
Calls cost Β£1.37 per minute on top of your standard network charges.By email
Email UK Visas and Immigration.
Emails enquiries cost Β£5.48. You will not be charged for any follow-up emails about the same enquiry.Youβll get a reply to your email within 2 days, except on Saturdays, Sundays and UK public holidays.