@Adam *******
you can get it once per visa/extension SO as long as you're on yearly extensions (without breaking that chain) you'd be done with that 60 day visit thai family extension
BUT
If you haven't taken it since you've been on yearly extensions, it WOULD move your due date 2 months out and not have you have a Dec 31st expiration date
Although with that expiration date you can apply any time after Nov 16 so a few weeks ago, and you'd have gotten a 21 day under consideration stamp as C/W went to 3 week U/C stamps