What should I do if my work permit expired and my non-B visa is about to expire in Thailand?

If your work permit expired two weeks ago and your one-year non-B visa is expiring today, it's crucial to address the situation promptly. Technically, your non-B visa became invalid once your work permit expired, putting you in a state of overstay. Both you and your employer were required to cancel the work permit. It's advisable to visit the labour department to officially cancel the work permit to mitigate future issues, including potential fines or problems with re-entering Thailand.