I don't know what I have said that is wrong, that you needed to 'correct' me on. I didn't provide any specific information, rather, suggesting that the OP provide more information, so that others can be specific in their advice. That's why the two questions at the beginning of my comment. I'm fully aware that if one has a Thai Driver's License, they don't need an IDP. from personal experience, I know that an IDP is for people who are visiting another country, short term, who wish to drive themselves around while in foreign countries.
On Saturday, I watched the regular TNT live video on YouTube by Tim Newton. He had a Thai Insurance Broker on the video this week, answering questions asked by Expats, mostly about Health Insurance. Tim has apparently had health insurance through this guy, Max, for about 13 years and has a lot of trust in him. In this video, Max comes across as a very nice and genuine guy, who knows his stuff.
In sure that Trump wouldn't like you. He prefers people who will physically be on the rioting front line, not people who make unnecessary and unsolicited comments like this keyboard warrior mentality.
Thai license? License from another country? When posting a question, a bit more relevant information will help to get better, more specific answers. It's like people asking if they need a visa to visit Thailand, but not specifying what country they're from, what passport they hold,nobody can give the correct answer without certain relevant information. Comments before mine are general answers given based on a guess at your passport country, or assuming that you might have a Thai Driver's License. At least your terminology is correct in asking about the IDP, where many use 'License' when it should be 'Permit'.
is that going to work? A DTV "soft power" option, like other options for that visa have to be genuine. One guy applied on the basis of having made an appointment with a Thai doctor for a general consultation. His application was denied and was told something to the effect that his medical reason had to be a specific medical condition. As for leaving Thailand and returning to get another 180 days, is there any information to confirm whether or not there's a requirement to have further appointments or treatments for a specific medical condition? The DTV is barely 5 months old & while some hold a DTV having a business may have come and gone out of Thailand and returned, they're continuously running their business. A "soft power" option may be a different kettle of fish.
From everything I've read in these groups, you need to prove with documents, such as Drivers License, Utilities Bill, that you are in the location where currently staying. I don't know what documentation you get when entering Canada on a USA Passport (maybe a stamp in the passport just the same as entering Thailand on a Visa Exempt entry?). I think your problem is trying to use your Brazilian Passport in Canada for the application while not being able to provide documents that prove you're in Canada at the moment. Maybe you need to return to the USA and apply from there, if you have documents that show you normally reside there. Otherwise, as
said, go to Thailand from Canada Visa Exempt and apply for the Non-O at the nearest Immigration Office to where you will live in Thailand. If you don't have a bank account in Thailand already, that will be more difficult an issue if entering as a tourist, where it's a lot easier if you enter the country already having the Non-O Visa.
I was just looking at the screenshot posted by the OP - hasn't the Insurance requirement dropped to about 440k Baht yet? I thought it was going to be dropped to that amount in September or October this year. Perhaps another 'TiT' thing that's delayed or won't happen 🤔