The reason why 50,000 won bills are sold for 40,000 won in cash

Direct dealer killer
4058C
For sale, Seongsu Station 50,000 won is sold for 40,000 won.
40,000 won (suggested price)
Are you selling 50,000 won in cash for 40,000 won in cash?
yes it is
Are you from Seongsu Station?
Yes, it’s Seongsu Station now.
But why are you selling it?

Direct dealer killer
4058C
On sale: Seongsu Station 50,000 won, sold for 40,000 won.
40,000 won (suggested price)
in fact.
I accidentally lost a 50,000 won bill in the bathroom.
There’s no water
So, this 50,000 won bill is for 40,000 won.
I’m digging it.
Come and take it with you and wash it.

Direct dealer killer
40,58C
@:
On sale Seongsu Station 50,000 won, ends at 40,000 won
40,000 won (suggested price)
You have to come and take it with you and wash it.
Actually?
Once you check the actual product, there will be no return.
Sorry, I can’t buy it.
I pray deeply to you all.

Direct dealer killer
40,58C
For sale, Seongsu Station 50,000 won is sold for 40,000 won.
40,000 won (suggested price)
I’ll give it to you for 35,000 won.
Because it is folded, it feels more dangerous than expected.
not big
You know, I bought it.
Sorry I’m not following you