i used stamps.com for media mail packaging for a 13lb package but it was in...

[glenrich9908]

...priority mail box.? will it be deemed not media mail? what will happen? im new to shipping things like this

 

[Blondie]

I believe you will have to ship it priority or put it in a different box

 

[Patrick D]

Perhaps we are subsidising your package. Like one price fits all.