@Linda *****
I don’t know your situation but double check that you have coverage in Thailand(which I doubt).
If you’re looking for coverage like back home like USA is blue cross blue shield etc look at the 3 I mentioned. There are no rules or regulations here ie FTC, public health regulators etc.
if they decide to decline your coverage, what are you going to do? Sue them? If you buy insurance here, test it out within the first month to make sure they will pay for it. Don’t wait 3 years down the road to use it then get declined when you’ve paid 3 years of premiums.