People have done it. The rules technically say you need to be in the country you are applying from for the duration of the application.

As others have said they may ask you for an interview or copies of every page of your passport. If you can’t attend or provide those they may see that you are no longer in the country and can cancel the application.

Your call. You can try. You might get lucky. You might not.

@Nongnuch *******

No such rule that you need to use the same DLT as the residence certificate area.

Each office set their own requirements. TBH they don’t want to do the extensions so will set the bar really high to get one.

@Robert ********

Absolutely. If your name isn’t on the register with the phone number that you gave the bank then they’ll lock out the app.

@Ciaran ********

You’ll need a filed TM30.

You apply at CW and they post it to the address on your TM30 within 7 days.

I’m not sure that’s there is a quicker option there.

Depends how the daughter entered Thailand. If with a Thai passport then they are treated as a Thai national. If using the EU passport then they are treated as Non Thai and the father could get a guardian visa based on the daughter being at an international school.

500 baht per day fine up to a max of 20,000 baht.

One applies first. You’ll need the issued visa number to apply as a dependent for the other.