Bank is the place where users deposit/withdraw their money.}
There is a 5% tax in all the deposits.
The bank offers daily interest ( 1% normal user, 2% VIP user ).
Your money are protected from every action of the game except the kill function.
If they kill you, you lose 20% of your bank account.
Also in this page users has the ability to transfer money to other members but there are some limitations.