I forgot my PIN number of my ATM card. WHAT TO DO?

Philippines
@cearn25 (3463)
July 19, 2012 8:50am CST
I feel so sorry to myself when I can't remember the pin number of my ATM card anymore. I just found it out the other week. I told my mom about it but she don't have any idea on what to do. Because of this I can't withdraw my money through ATM machine but I can withdraw through a bank teller however the fee is big unlike in an ATM machine there is no fee at all. I really need your help my friends. If you've got any idea please share it to me. Big thanks in advance! All is well!