My iPhone doesn't have a contract?

I got my iPhone because my dad lost it and got a new one the next day and someone called us and said they found it so i got it, so since their is no contract on it ( I use prepaid with the locked carrier) Can I get them to unlock it? And its with Fido

Who is "them"?

You can unlock your iPhone and use it on your prepaid plan. You can mail this person (arghyle@roketmail.com) who can help you get the phone factory unlocked.