What is the process for applying for a 7-day extension of stay when cancelling a work permit in Thailand?

To apply for a 7-day extension of stay when cancelling a work permit, you need to first cancel your work permit. After that, you can apply for an extension at an immigration office; however, it is important to note that this application will likely be denied since you no longer meet the requirements for a work-related extension. You'll receive a stamp allowing up to 7 days to leave Thailand, starting from the day of your extension application. It's crucial to plan your departure carefully.