So my Non-Imm B is valid until March 2021, but I went on amnesty on June 10th without an extension (I normally leave every 90-days), so I have to leave by September 26th. But I'm being told the visa is no longer valid because I didn't leave by June 10th. Is this true?
TLDR : Answer Summary
The Non-Imm B visa remains valid until its printed expiry date, which is March 2021 in this case. However, the person's status was affected by the amnesty and their last entry stamp, which was valid until June 10, 2020. According to the comments, if the individual did not leave Thailand by that date, they may face issues returning even if the visa appears valid. The advice provided suggests that options are limited for those who relied on 90-day visa runs but now cannot travel due to the pandemic conditions. They may only have a few pathways to remain, such as applying for extensions based on employment or obtaining medical certifications.