Contrary to what many anti covid vaxers think, many Thais wear the face masks just because of the pollution. Ever been on a motorbike when some truck in front of of you blows out thick black smoke in your face?
Plenty of weather apps on smart phones to show the air quality index.
As far as historical data, I'd say the dry season has the most days of smog alerts in BKK.
I don't know how other country's social security systems work, but in the USA, when you retire, you get back what you paid into. When I've spoken with some young Americans that wanted to live here (making money under the radar) I'll try to remind them when they're old the monthly payday will be super small.
Please show where their hamburgers cost 500b. The last time I was there most burgers were about 400b. If you're going to cherry pick the most expensive items, don't try to make it sound like it's the norm.
It's easy to take things out of content, if I said 50 people in the restaurant touched the spoon before me, it sounds gross, but at the Sizzler salad bar that's exactly what's happening.
At a minimum, I'd keep some sort of physical trail (e-mail, Line chat, etc) showing the date you wanted to cancel, that way they can't come back to you later saying you need to pay.
https://page.line.me/tmn.pattaya?openQrModal=true