When you say ‘residential house registration’ do you mean the blue house book? So that would be a copy of that, signed by the registered person on the book, do you also need a copy of their ID card?
Or do you mean a residence certificate from immigration?
Out of curiosity, can I ask how old you are? It’s just that I’ve had agents tell me they can get an account for a DTV holder who is over 50, but not younger.
Your application for DTV would be based on your remote working. Nothing to do with anything else. No need to mention anything else. It’s not relevant and won’t help your application at all.
Doesn’t need to be a return to the original destination to satisfy either the airline or Thai immigration. Just needs to be onward travel out of Thailand