Can I apply for an extension of my visa waiver in Surat Thani if my TM30 form is filled out in Koh Samui?

The poster is inquiring about the process of applying for an extension on their 45-day visa waiver after collecting the necessary forms in Koh Tao, specifically the TM30 form from their hotel in Koh Samui. They want confirmation if it's acceptable to apply for the extension in Surat Thani, the same province, without needing accommodation in Surat Thani to provide additional forms. A comment suggests that as they are in the same province, it should be fine, and emphasizes the importance of using blue ink for official documents to avoid complications.