On March 5th you asked THIS same question..
My answer is as others have replied:
YES IT'S MANDATORY TO SHOW 3 MONTHS OF BANK ACCOUNT STATEMENTS WITH 500,000 THAI BAHT OR MORE BALANCE
"Is it mandatory for
*****
0 baht to be in my personal account for “3 MONTHS” before I apply for DTV in Vietnam? Thank you in advance for responses."