actually, in Pattaya I needed all that paperwork for a 30-day extension. It was because I was in an Airbnb and the Airbnb never reported me to immigration when I arrived. Also, there was a fine because I hadn’t been reported. I just went to Bangkok and did it there instead and didn’t need the paperwork or to pay the fine. I guess you can also go into immigration and just act like you’ve been staying in a hotel.