I have just called and talked with my friend again.
He is too busy to go to the bank since there are too many things to be ready before he leaves.
Please understand.
He said that he will be traveling in Cambodia for about 5 days.
He will not, and won't have time to meet you, because he is traveling with his family.
He will leave the cash in envelope at the hotel counter, then you can ask someone you trust from local to pick up the money,
just give him a call after you received the money.
Please trust me, this is my last and the best thing I can do to help, I don't want my friend to know too much about us either.