Is it necessary to pay around 7000 baht to open a bank account in all banks in Thailand or does only Bangkok bank charge this fee?

Hello ,sadly my Thai wife passed away just before Covid (cervical cancer. I have two kids with her. I'm from the UK and her sister looks after them in Buriram. I need to sort out British passports for them. Does anyone know any agents In Buriram that can do this.

UPDATE : it works with Skype !!!! Thank you all for your help !!! Buddha bless ! ;-)

HELP : BANGKOK BANK PHONE BANKING :

Hello, is there anybody who could help me : if you understands Thai well, and are currently OUTSIDE Thailand, could you please dial Bangkok Bank Customer Service Number : +66 2 6455 555 and press the key 2 : "for English language", and wait about 10 seconds to listen to the message in... Thai (unfortunately not in English...) and let me know roughly what they say ?

I am trying for days to reach them, but it is impossible... and I do not understand Thai enough to understand what they say when I call them... Calling from Switzerland...

THANK YOU SOOOOOO MUCH ! Happy New Year !