I will try to contact again for the next few days via phone and email. If nothing happens after that, I will just refund the appropriate amount of money.
My brother passed away 3 years back and left a lot of unfinished business. Maybe something happened to your buyer and someone else just sent it back to you expecting you to just refund. I would just refund less fees and a small charge for the scratch.
I wonder if maybe the buyer forgot who you are: her shipping and tracking information will reference someone (your neighbor) she has never bought an item from before. Maybe she can't connect your name with the return package, LOL.
I will try to contact again for the next few days via phone and email. If nothing happens after that, I will just refund the appropriate amount of money.