Have you tried to use kakao bank in korea?
it is definitely very useful for withdrawing, sending money to abroad or something.
Today I will show you some of informations about sending money to abroad in kakao bank.
But I'm sorry it will be korean explaining though.
so If you are korean, you can get it.
I think a commission of exchanging money is cheaper than other way.
so If you need it, you'd better try it 👍