Can I get a 30-day visa extension at Laem Ngob without a current registered address in Thailand?

The user is seeking advice on obtaining a 30-day visa extension at Laem Ngob while having checked out of their accommodation on Koh Chang. Concerns include whether this will pose a problem regarding registration and if an appointment is needed for the immigration office. Responses suggest that having the last TM30 from the previous accommodation should suffice as long as the immigration office location aligns with the province of the TM30. It's also advised to handle the extension process early and to check with the immigration office about appointment requirements.