What are the steps to register my stay with immigration in Buriram, Thailand, and what should I do if I wasn't registered for one night?

To register your stay in Buriram with immigration, you need to fill out a Form TM30 within 24 hours of your arrival. This form requires copies of the owner's ID and the house registration book, both signed by the owner. If you were not registered for one night while on a bus, there is a risk of fines for both you and the property owner, depending on enforcement by local immigration authorities. If you cannot reach an immigration office, you might consider going to a local police station. Additionally, some suggest booking a hotel as they are responsible for reporting your stay. Overall, ensure you complete this registration to avoid issues with immigration, especially if you plan to extend your stay.