LOL you still think there is a chance? I gave up waiting for my 9k baht from Thai Airways long ago. Thai AirAsia there is probably less chance than that (so < zero ) since they won't be able to suck up any government money.
B2 is really the only option for that situation, but I'm really surprised the appointments are booked out 13 months in advance. Maybe try another embassy in a neighboring country (Cambodia just opened I hear), for the B2 I don't think the US cares where you apply