I would go to the local immigration and pay the 2000 THB there. They won't red flag or do anything to you because you went to immigration voluntarily. But if you wait until you leave and you come across an officer who is having a bad day and doesn't like foreigners anyway, he will take the 2,000 baht fine and even red flag you. That doesn't mean they will not let you in again but they could ask you more questions than normal. Who would you pull out into an interrogation room ? A person who always followed the rules or people who had 90 days overdues ?

What is the balance date on the bank statement you submitted? How many days is it different from the date you submitted your visa application?

You have to look on the consulate's website to see which region the consulate is responsible for. When your ID is californian it is likely LA. Keep in mind when you get invited to an interview then you have to travel there.

Make screenshots before you before you finally submit it. And triple check everything. Now its difficult to say because you might did just a careless mistake

If you book 1 month in advance it will be fine. Processing time is 10-15 working days

Ok. That makes sense 😉

@Expat *********

ok they write "should". But why is it important to do this in advance ?

Users Guide:

WHEN SUBMIT?

Foreigners should submit their arrival card information 3 days in advance of arriving in Thailand, including the date of arrival.

So how to do a DTV border run ?

At BKK airport immigration they took 10k from you to let you in ? On which legal base they did that ?

@Dnatjugweme ***********

good point. Maybe they have some translation errors. I will use the english site