Is a final balance of 500,000 baht sufficient for the DTV visa application in Vietnam, or must it be maintained for 6 months?

When submitting a bank balance for the DTV visa in Vietnam, there is uncertainty about whether the final balance of 500,000 baht should be maintained for 6 months or if a shorter duration suffices. One commenter noted their experience where only the last balance was checked, and their visa was approved with a one-month maintenance of the required amount. Another commenter suggested contacting the authorities directly for the most current guidelines, as requirements can change.