I can be totally wrong, but according to your picture dates, it seems like you are a month late, this could be the reason why you don't see it, and they want you to report in person
so you are telling me a Thai citizen can just fly to the US, nothing re-arranged, and get stamped in for 30 days, and get extended to 60? Just like US citizens can do when they come to Thailand. If so, its great news
With all these stringent requirements the US place on Thai citizens to visit, I really cant believe that Thailand still welcomes US citizens with open arms and withoit visas, no wonder the new 90 days were only granted to Russian citizens