The answer:
Yes,we know we must give our money through the bank staff while the cashier sitting in the desk of cashier in the bank office.
But how about this:one bank staff talk to another bank staff as they want to cooperate for business.they invite people to make transaction after presentation.Few time after that,there is no return money,no money interest,only lost money.
That's the problem when give money through bank staff but not know the rule.
What is the reason:
Sometimes maybe person only introduce as a bank staff,but it's not real.Another few reason for this problem
