I did the book last year just the once in Bangkok immigration and they insisted that the book had to show that the money was not taken out
So I had to go to the bank and get them to print the statement for the hole year and I had to pay and wait for 5 days for the statement and get it signed by the bank
0 out of the bank account and put it back 3 months before you get the visa
But if he has a saving account he will have a book and that will have to be updated as the proven information that he has the money in the bank and a copy of the book for immigration and I did it for the last 10 years including last year
yes that's right But I don't know what immigration office he is going to if he's going to Bangkok immigration then he will get the letter from the bank