, as long as you meet the requirements for Non-OA, ie insurance. As mentioned, you might need a new insurance policy.
A valid Non-OA gives you an earlier date of 365 days or insurance validity upon entry. This is the same you enter on the first day or last day of Non-OA. You need insurance covers for the length you want to be stamped in.
There is not one document that covers all of those regarding only Non-OA. Those are on police orders with partial revisions. You have to follow all related police orders if you want to see exact official documents. You can check the Immigration Bureau for some of those.
You need to check all related and pick what is related to you by yourself.
But here are some that may related to you.
- Every foreigner who stays longer than 90 days on a Non-immigrant basis visa or extension is obligated to report 90 days
- All multiple-entry visas including Non-OA let you enter Thailand for visa-specific length until the last day of visa validity (<- this is how Non-OA visa holders get a "second" year and not an extension)
- You can apply for an extension at the end of the "permitted to stay" period at the local immigration office for the same reason for the visa by meeting the requirements of the extension that are not the same as the visa itself (<- this is different from second year directly from visa)
That WAS your visa number. You can see "USED" stamp on your visa. Your visa was used and is no longer valid.
What number you want to fill in TDAC with is the number on your re-entry permit.
You already have a "permitted until" stamp or "extension" stamp.
The "Visa Number" field on the arrival card refers to the document you enter on when you are approved to enter Thailand. Usually, it would be an actual visa. But for someone like you who is already in Thailand with a valid stay stamp, what lets you enter Thailand on is a re-entry permit.
No appointment is available for cancellations. You have to do it as a walk-in.
You cannot cancel a retirement "visa" if you are still on the entry (or initial) stamp from an actual visa. You just need to leave Thailand without a re-entry permit to invalidate your visa.
Usually an extension based on being over 50 doesn't have to be cancelled. I don't know anyone who applied for cancellation of retirement extension under normal circumstances.
What reason do you want to cancel your retirement visa or extension?
No, you cannot. You have to leave Thailand without a re-entry permit and start the process all over from scratch again. Either getting an initial Non-O visa at the embassy outside Thailand or entering Thailand on tourist status to apply for an initial Non-O at the local immigration office.
Yes, you can apply for a 30-day tourism extension tomorrow, no problem. You will get a stamp mentioning 1 day overstay and the fine is waived due to office closure.