Just so you're clear
@Mi**
, the reason they want all the pages of the bank book copied are because of the changes to the requirements when using banked money for a yearly extension based on retirement.
You need to have the 800K baht in the bank 2 months before you apply for the yearly extension, it needs to stay IN the account for 3 months after you get the extension and then the balance can't go below 400K for the rest of the year <- that's why they want all those bank book pages. They are looking to see that you kept the 800K baht in the account for 3 months after you got your extension last year and checking to see that the balance didn't go below 400K the rest of the year.
It's common now for immigration offices to ask for that much documentation using banked money method on retirement extensions
Glad you got it, (y) Lucky it was a slow day at the immigration office :P