rephrased the 2nd question
Lets say I want to sell 21 ads and the person asks me to transfer the ads to his account before he gives me the zeny, if he doesn't give me the ads, can i report him?
You can transfer credit to another account. Please check your entry carefully before submitting, as it cannot be undone.
Do not use this for trading for in-game items with other players---we are not responsible if you get scammed. Instead, withdraw the credit into a tradeable in-game item and trade with them in-game.
I guess i'll wait for the ads withdrawal/deposit first ;~;