I always do the 90 day reporting online without problems. I recently left the country for a weeks holiday and returned on the 4th March. I think the 90 report is reset at this date, yet last week I got an email reminder to do the report, so I did an online report and it has been rejected. I presume this is because my 90 day is reset and I need to do again around 10-15days before the 4th June. Can anyone just clarify this to save me a trip to check at immigration.