Hi! I have a question about the Flat Rate International Priority rates.

This is a general question. About USPS policy. This is not a package question as in 'where is my package' etc. It mentions a package but the question is about policy. Or maybe about their website.

Large flat rate box is on the website with a flat price next to it. Nothing about depends on where.

That link says that a 12 by 12 by 5 1/2 inch box should cost 74.60 flat rate. Doesn't qualify that with "where."

We shipped that box -- saying clearly "flat rate" on it -- and the clerk charged over $120., which is about what a normal shipping would cost, by weight. Flat rate is not supposed to be by weight.

They charged postage by weight. Is this correct policy, or did they overcharge? Just wondering. Thank you.