the truth of the matter is you haven’t done anything wrong, it’s just a technicality… I don’t think you will have any problems in getting your extension…..
One thing for sure, we all have different experience….. it always comes down to the individual you are dealing with, it’s their interpretation of the law
…. speaking of which…. the BB branch I go to (Loei Province) can only issue 6 months statement on the day ( for 12 months the require a few days notice) and that hasn’t been a problem with immigration, so last time I just submitted the 6 months statement and the actual bank book to show the other 6 months …. I guess I am lucky with the Immigration office I deal with.
The best you can do is getting 12 months bank statement from BB and a statement from the new bank (from the day the account was opened); you will have to explain to Immigration the reason why you moved your money from one Bank to another, they should understand
as long as you can demonstrate it’s the same money and you haven’t gone under the minimum amount of 400K at any time in the last 12 months …..