I had a not so good experience at Pattaya last year. The staff there made everything so difficult and were neither friendly or helpful. A TM30 was necessary before even considering my extension. The clothing I wore was also a big issue to them and they also insisted that i use a blue pen. This year I extended in Patong, and what a complete difference. I went prepared, took a copy of the TM30 from the hotel, took a blue pen with me and looked reasonable. Absolutely zero issues. The TM 30 was not needed, when I asked if the blue pen was ok they laughed and said no problem. Staff were really friendly and when I told them of how Pattaya do their business, they appeared amazed. Anyway, the office opens at 10am and you are given a number and the TM7 to complete when you arrive. You need 1 passport sized photo, copy of your bio page, copy of the page showing your entry stamp and 1900 bahts. If you don’t have a photo, they will take for you for a small fee. Took 10 minutes to submit everything. Was then told to return in an hour or i could sit in the air con waiting area. I chose to wait and I got my passport back within 20 minutes. Total time 30 minutes and this year was a very good, friendly and helpful experience.
if she has entered the UK on a visitor visa, she can not apply for a Schengen visa in the UK. She will need to return to Thailand and apply there which in this case is not practical.
Ea Sy no work around. That’s how it is. I was confronted by this same problem recently. So I opted to going to Dubai and Turkey instead of Europe as those two countries don’t require a visa for Thai nationals.