I have an Edu visa from Chiang Mai university. The stamp I got last year was good until March 1, 2023.

 

My school did 3 90 day reports for me. The final paper has a stamp that says "notify again on Feb 22, 2023" suggested days were shaved on every report since 2 of them were done a few days early. I did not print the notices and at this point the school's pics have been erased (is this a problem? I think maybe I should have printed copies to staple to my passport).

 

Do I have to leave by Feb 22 or March 1?

Your 90 day reports have nothing to do with how long you can stay in Thailand, the only thing that matters is the "Permission to Stay Until" stamp in your passport from your last entry/interaction with Immigration. 

 

If it says 1st March 2023 then you're good until that date. 

 

Ideally, do the 90-day address notification, though nothing terrible will befall you if you omit it, given that you plan to leave Thailand anyway shortly thereafter. Your last date to leave Thailand (assuming you do not extend) is March 1st.

I would have thought worst case scenario is 2k fine for not doing 90day report.