I accidentally purchased the wrong shipping label

[lux_horizon]

My package was a plain brown box that only weighed 13 ounces and I didn't catch that the cost was $7.90 until after the label was stuck on the package and sent out. I use the qr code to print the label at the post office and neither I or the post office employee noticed. It was a first class package and I accidentally purchased a priority mail label. I feel like I just overpaid and don't know if it's a loss or if I can get those few dollars back.

[disneyshopper]

Once the label has been printed and accepted at the post office, that package will simply go out via Priority.  It was probably a loss of about $3 or so.  That will remind you to be more careful in the future.