May I help you ?   Yes . I'm sorry , but I've lost my passbook .   Well . Can you tell me how much you have deposited ?   About RIB 12,000 .   Please let me have your name and your savings account number if you remember it .   I'm Bob Brown . But I can't recall my account number .   Don't worry , Mr . Brown . Let me try to check it for you . One moment , please . Yes , I have your account number here . The balance is exactly RIB 12,000   Thank goodness . It is still there . Thank you very much . 