I sent in my 90 day via EMS (one week late) on 13 Jul. It arrived on 14 Jul. I have heard nothing since. Should I worry? I tried 12 times to phone Immigration (Nonthaburi) today but could not get through. I sent my previous 90 Day by EMS no problem.
TLDR : Answer Summary
The user submitted their 90-day report late via EMS and has not received a response. Comments suggest that late submissions are not allowed by mail, but due to the amnesty period, fines won't be imposed. However, the user will need to file their report in person during the specified amnesty period.