I just took a chance on buying something that showed up on eBay for cheap. I bought it, sent payment, then when I went to check my PayPal account, I saw that the payment was unclaimed, and it says: "(The recipient of this payment is Unregistered)"

... so what the heck happened? I thought sellers were supposed to have a valid PayPal account before being able to sell stuff.

I just contacted the seller to see what's up but haven't gotten a reply yet. Am I about to get scammed?