return first class

[adaml05]

So I am returning this useless type c to HDMI cord that only charges a phone and does not do any type of screen sharing whatsoever. Anyways the point is I have a first class shipping label and I put it in a I already mailbox because that's what I always use for all of my poshmark sales so I have a whole stack of them. Anyways it came back returned to Sender even though I am actually the buyer. So what kind of box do I use send this stupid cord back to the stupid seller

[adaml05]

priority mail box is what it should say

[campanaelia]

Ship it back in the same type packaging it arrived in. I save all my packaging from items until I'm sure they are exactly as described...

[campanaelia]

No, you cannot use a priority mail box with first class label.

[omcstart]

Priority Mail Box (any) cannot be used with First Class Mail service.