@Matthew ********
Jomtien started doing it when the seasoning switched to 3 months after the extension was granted.
Many people have reported having to update their bank book and show back up on the 3 month mark.
In theory as soon as you fail to meet the criteria for the extension, that extension can be voided. I have never heard of it happening,
but
I have had people who got caught out the following year because they didn't keep the funds in the 3 months after their extension was granted,
they had to leave, come back and start all over from zero with a new non o etc