While we wait for
@Horntoad to answer your question, NatureCrone,
Since I was in the "Test Beta Swap", I'm trying to remember how that went... I think when the swap ends, you will get a system message from the Host (Horntoad) with the info of where to mail. Then, once you have sent the package, there is a place to check off "Sent" and add your Tracking Number.
