I have heard from Thai who apply for US visa. Even though they have so good profile and good history of traveling but got denied. People have been saying depends on your luck and how you write DS 160
Make a packing list and took pic of it or pic when you wear those items. If it arrived and courier asked you to pay xxx amount and it's exceeding the value. You can use packing list and pic to re-assess. 30% for tax from CIF
it's true. Some Thai got message to proof manythings at bank and still do not pass. Even though their account are not mule account and amount is equivalent to 40,000 THB. It's operated by Anti Money Laundering Department.
Yeah. I saw a lot of Thai people got their account blocked by bank and must provide proof of income. They can't open any new bank also as their ID is shared among other bank.
I think it would be now way harder for foreigner to get bank of short stay visa.