A visa-application should be made by her (with your assistance and docs. from you). She should apply via the US Embassy in Bangkok.

@Braulio ********

It is the actual name of the LTR categories of visas...

@Omar *****

I don't think you need to worry... but like I wrote - allowing entry is up to the immigration officer. There are no official limit to how many times you can enter on VOA. Unless the IO have another reason to deny you entry, you will be fine.

That's up to the Immigration officer. However they are unlikely to deny an entry on VOA, since denial is often made if they suspect anyone to try and live in Thailand without a proper visa. Something that would be somewhat impossible to do since you'd have to leave every 15th day with VOA.

@Chris ***************

most likely not. Each embassy have the estimated process time listed on their webpage. But I'd say you should count on at least some workdays (not weekend) for the process... In the end it might take some more day, so you should plan for that.

Just as information, you actually need proof of being in the country where you apply - such as hotel address and entry stamp in passport.

@Paul ******

the OP wrote they are going to the Philippines.

...and I never assumed it would be easier. I were just trying to find ideas how they could possibly do. 😉

@Gary *****

Good luck!

@Paul ******

ok, I did not know that they had specific requirements for certain countries...

And yes, it would require a visa to the country where they would apply.

Doable or impossible..?

I guess the OP would have to check with the actual embassy:

"What are the extra requierments to apply for DTV as a dependant to a UK citizen if you are a Ghanian citizen?"

It is not a common situation...

@Paul ******

that is part of the OP's problem - no Embassy in Ghana and don't want to apply in Nigeria...