There's no need to extend at an immigration office. You just border bounce and get another year totally free of charge, so no requirement to go to immigration office in that two years, hence no need for TM30 or 90 day reports. I know it for a fact. I did it for six years. Border immigration don't care about TM30 or 90 day reports
Even better. I think some prices have dropped since I last looked. It's funny how some people are frightened to pay that for insurance and yet will think nothing of paying an agent far in excess of that to get a dodgy visa. Sometimes people's logic stuns me!
Insurance stuffed it up, but still possible to get half decent insurance for around 30,000 baht. There are some gumps out there pay that to an agent to avoid having 800k in a Thai bank account. OA doesn't need anything in a Thai bank account.
I didn't. I went back to Australia within the two years. Whilst there I got a new OA and repeated the process. Best visa ever, but now the OX is better. Gives five years, and can be extended another five
Never applied for an extension because I'd return to Australia every two years to visit family and friends and get a new OA, so no extension required. But no, didn't leave every 90 days. No-one at the airport or land border gives a crap about 90 day reports. I didn't even know what they were.
OA is a great visa especially if you intend to visit your home country once every 18-24 months. Many people frightened of health insurance, but the cost of the insurance outweighs the necessity of having to go to immigration. Keep in mind some gumps pay 25-30k baht per year to an agent to avoid going to immigration. See if you can pick up a basic insurance for that price.