Happened to me too. The fix was to put my first and middle names in the first name field, joined with a hyphen.

Happened to me. I just went to the nearest office and got it sorted.

Thanks everyone, the visa got approved. We just put the middle name in the first name field.

If it's your first extension, you're applying for a visa waiver, not a visa. That trips up a lot of people.

Is that the error you're getting? If so: 1. Are you sure this is an extension that can be done online? Month 1: 30 days visa-free Month 2: 29-day visa waiver (online, but a different option from extension) Month 3: in person only Month 4: online (but usually done together with month 3) Month 5: online (but usually done together with month 6) Month 6: in person only Months 7-12: online Months 13-36: in person only 2. Have you checked every single entry? If anything is wrong, it won't work. 3. Did you move your middle name into the first name field? That's often the cause of the error. Like this… First: 'first' 'middle' Middle: n/a (It tells you to enter n/a if it's blank) That covers most, if not all, issues.