Thai citizenship by descent when no-contact with parent
Hello!
Any advice for someone born in the US with a single Thai parent (mom born + raised in Chiang Mai) that was abusive and cheated on my father and dipped out of our lives when I was in my teens? I'm 30 now and would like to file for my Thai citizenship, but have no idea where to start as I have literally no idea how to contact her (and even if I did I doubt she'd be willing to produce her passport etc.) and don't have any copies of her documents at home.
I have her name, an idea of where she was born, and photos of her from like 20 years ago but that's about all I've got to work with. I'm gonna call up the local Embassy on monday and bother them about it but in the meantime is there anywhere I can look or anyone else I can contact to help verify any information on her to make the process go smoother?