of course it avaible, bank do not freeze the money it only freeze the service of their bank to you. You will get your money instantly if you want it. All the people here have zero understanding of law. Only a court order can freeze money nothing else
they can't deny the visa if your paperwork is ok. Especially if you have a Thai partner. No chance to deny. And an immigration officer would not risk to explain with he deny against the law an extension if all papers are ok.
All the people who pay make it harder for the other ones.
The problem is that this is only for kids until 12 years old after this age many airlines don't offer or you have to pay extra for the service, I know Emirates offered it for free bc my kids were flying 10 times with them as teenagers
what you want to bet it's incorrect, it when the amount drops under the 400.000 or 800.000 you are not loosing your extension or you not become on overstay.