How to get ped Sony Ericcson W901i Pin and puk codes?

About a day ago, as I was walking home from school laying on the gr I spotted a Sony Ericsson W901i. It was switched on, I then switched it off until I got home, and tryed to turn it on but it asked for the pin, I used up all my guesses and got to the PUK codes used all them up and got to the MUST CONTACT CUSTOMER SERVICE screen.. How can I get ped this?