I have been here about 7 weeks on a single entry visa, and going to get an extension in about a week. I just heard from someone that they just very recently (as of the last couple days) that they ask for TM30s to get an extension? Is this true? Do I need to ask my landlord for one? What if my landlord never did it? Any help? Thanks! (Edit: Will get my extension in Chiang Mai)