Hey there. Would love some advice on this. I'm going back to Thailand for my dive master and need 90 days but was so busy in Laos I wasn't able to get my appt at the embassy for a 60 day. I arrive in BKK this Sat. Can I get a 60 at the airport then extend 30? Should I reschedule my flight before an embassy appt or can I just go with a 30 tourist and extend twice? Thanks