Why I asking her age because register birth in thai should not over 14 years old

@Mark *******

yes i know she is british and i have daughter who is british as well and my daughter now she get thai citizenship, I'm thai and i contact with Thai embassy in london by send an e-mail to make an appointment with them to make her thai birth certificate first in London,before get an appointment thai embassy will send you all details and documents tell you what they need to you to prepare also the form to apply for her thai birth certificate. Once you have all papers and documents what they need you can book the date to go to thai embassy. For my recommend is his Thai wife should contact with Thai embassy by herself because it easy to contact with them. Once they have her thai birth certificate from Thai embassy in london bring this certificate to Thailand where the Thai mother born to register the birth at the district area after this she can make thai passport or whatever.

How old of you daughter?.And tell your wife contact Thai embassy in London by send an e-mail,normally if you wife is thai she know how to do to get her daughter get thai citizenship