Not sure which forum to post in

Background: I used to bring in close to $10,000 USD cash many times thru airport, (not declared) go deposit into thai banks.

Recently I was denied the initial "retirement" extension of stay because Immigation (Changwattana?) wanted letter from bank stating money was from a foreign source. The bank would not give letter because only proof bank had was my USD cash deposits. Now bank says I can not transfer money out of thailand because I can not prove it is foreign sourced.

My thinking is to declare any additional money I bring in, to Airport Customs to have some form on documentation, it is foreign sourced before depositing into a Thai bank. Thereby the bank can give letter required by Immigration. I can get my extension of stay.

There is no requirement that the money must come from abroad.

Just wire money to your account in Thailand, much easier and safer than cash.

There's lots of threads regarding wiring money here. I use Bangkok Bank as they have a branch in New York. Easier to transfer there and is cheaper than doing a wire transfer. I forget the cost, but it's really not that much. $20-25 or so. I don't like carrying around large amounts of money.