Seller Canceled an Order After It Has Shipped - What Next?

[taylorvw]

So I ordered a roll of carbon fiber vinyl sticker, it shipped, tracking shows it as being "In Transit" to the destination. This morning I wake up to see that the seller has canceled the order and refunded my $7.50. That amount is definitely back in my PayPal account, but there's still the matter of the item being in transit.

I've reached out to the seller for an explanation for canceling the order, but have not heard a reply. 

I want to understand what recourse I have if the item still shows up. I have my order, I didn't ask for a cancelation. What should I do?

Thanks!