Okay, I've recently order a camera at aiptek, but it came with a little bit of a problem and missing some items. So i want to use the warranty for a replacement. The camera box size is about the size of a med size dictionary. Should I mail it by USPS flat-rate box or large? Also I've never mail any thing in my whole entire 14year of life. How do i mail it? Do i just get a box from usps (is it free?) put my camera into the box with peanuts. Seal up the box. Write my address and the address im mailing to? Thanks! Also, what is freight prepaid?