You could get up to 75 days with visa exemption 45 on entry + 30 extension.
Also look into the covid visa. Think it’s 45 days and able to extend multiple times. I’ve heard this is ending in September and last extension will take you to November. So if you’re travelling soon you can get at least 3.5 months in Thailand.
Conditions say you can’t change a covid visa into any other type of visa. Your only options are to exit the country and enter on a different visa or use an agent. That option is obviously at your own risk as it’s not an official route but yes, overlooked.
Are you looking to stay in Thailand more than 60 days? If you are, entering on a tourist visa won’t avoid questions why you don’t have a return ticket anymore than arriving visa exempt.
If your country qualifies and you’re staying 60 days or less, sounds like you’d have an easier time by getting a 45 day visa exemption stamp on arrival. Once in country, you can go to immigration office and extend your stay for up to an extra 30 days at a cost of 1900bht. Job done!
Not an expert here but have been investigating this visa as I’m also looking to stay long term in the near future.
My understanding is that the ‘initial’ OA visa is a multiple entry long stay visa. After ‘one year’ you apply for an ‘extension’ based on ‘retirement’. Could that be the issue??
Happy to be corrected if wrong as this information will be of help to me in due course.
Cheers. Trying to get the basic requirements of extending the O as it stands right now. I know it’s very difficult to exclude the current circumstances, but I’ll tackle the extra requirements as and when they change as I’m sure they will before I make my application. Thanks for your help.