British here. I got one 3 months ago. Was only 1 other person there. Have flights and proof of funds or bank statement. Will take you 10 minutes. Very polite staff and easy process.
I have done Hanoi and Ho Chi Minh City for 2 SETVs this year. The process was fast and simple and took no more than the 5 minutes to fill out the form and pay the $40. No questions. Just have proof of funds and flighs.
Where did that 15 day rule effect you or anyone you know? In Bangkok, I have personally never experienced it. The same with many friends. Most people I know do it as quick as possible. If flying into Don Muang many people, including myself, choose to do it within an hour of arriving as immigration is so close to the airport and so so far from the city.
