Haha thanks, if you're truly curious I will get back to you on it. I called my airlines to ask and they were also bewildered by the situation. Its because my country doesn't issue 10 year passports till you are 20. I got the visa near the end of P1's duration and got P2 before I turned 20 so it was only valid for 5 years. P3 is 10 years thought but yeah funny situation.