OK I figured that a "last minute flight" was about 3 days before not 3 months ( you did say Thursday for Friday) and so filling out the form at the same time would make sense
so "good pension" is enough - Good to know I always thought it was
*****
thb per month and generally can only be used in the second year as so few embassies do the letter of proof anymore BUT if you are right I can do all this on proof of any amount of monthly income (maybe even 1000thb) 😀 which I am sure is not the case