Holding a tourism stamp/sticker visa (not visa on arrival), in order to apply for an 30 days extension, do I need to ask the accommodation room host to register my information to some official website within a required period? I do not see this from Thai immigration official website, but last year, the owner of the house I stayed registered and print a paper for me to carry to the immigration office. If yes, anyone knows the website address, and which period of time that I should be registered? Many thanks in advance!