You don’t want to apply with a passport you’re renewing. It’ll cause issues for your visa and you’ll possibly have to carry the old one with you for the duration of said visa.
Just wait for your new one.
If you’ve already applied for it I’m not sure your old one is even valid tbh. I don’t think the UK ones are anyway. If it is you can still come as a tourist. But you’d have to leave again to apply for the DTV from a different country
posts say you need to go to the immigration office. Not the main immigration in Bangkok.
If you’d have done some research that didn’t include Facebook groups, you’d have seen very quickly that it needed to be the local immi office for your area. Better luck next time.