Just FYI, I went to Chiang Mai IO for my 1 year extension of stay based on Thai spouse but didn't have a print out of my TM30 as I've always used the Section 38 app. and unfortunately when I did it in January, I didn't screenshot it and of course when I went to pull it up, screenshot and print it later, the system was down. I was expecting a fine but I just explained what happened and they gave me a new TM30 receipt, no charge. Everything else was fine.