@Clive *******
the 7 day has nothing to do with it. You're REQUIRED to report if you're in Thailand for 90 days. There's a grace period to make the report, but that doesn't change the fact that the report is still required. You must report if you're in Thailand for 90 days. It's not an 89 day report, it's a 90 day report. So if you're in for 90 days you report. If you leave then you failed to report.