@Robert ******
thanks so much. I think we will have to chance it even with the stamp and just not use her UK passport to come in again 🤷🏻♀️
I don't think we can get anything relating to her being a Thai National as we couldn't get any paperwork for her until we got DNA results to prove she's Thai (which we've now got) because they won't accept UK birth cert to prove fatherhood, and now we've run out of time to get her Thai birth cert and passport (due to 3 weeks in quarantine) so will have to do it in the UK.