Do the rules not say full 800k for 3 months after the extension, then 50% for 5 months, then back to 800k TWO months before extension date?
If you emptied the account there would be a short period when there was no money there. Why not open a new account with 400k after 3 months, and top that back up to 800 with what was left in Bkk Bank 2 months before.