What documents do you need to provide at the Jomtien Immigration office for a 7-day extension application?

To apply for a 7-day extension at the Jomtien Immigration office, you will generally need to provide the same documentation as for a 30-day visa extension, including copies of required documents and filling out the TM2 form. It's important to include proof of your departure ticket from Thailand. Note that this application results in a stamp indicating you must leave Thailand within 7 days, rather than extending your current visa directly.