The items could be damaged. If I received damaged items I would let the seller know. I wouldnt lodge a chargeback.

The fact that there has been no ebay claim tells me this was paypal via a CC and backed up by paypal telling me.

I've been selling online for a long time and I can usually spot fraud. Not every time granted but this one has all the hall marks of it. No phone number available slightly mis spelt surnames no comms no response to messages etc etc.

I only do auctions and get both messages. I don't know if auction items can go in the cart ornot. I've never tried. I do have a BIN option but most sell as auction. I guess it's possible some people could put it in the cart before bidding. I've got a few auction items on my watch list. I'll see what gives with the cart when I get home from work tonight. 

Tippy, I have a seller who puts my items in the cart when she sends me a final invoice.....always multiple purchases, sometimes auction, sometimes BIN.

I have even been able to use an ebay voucher during the payment....very nice when it is a 20% voucher and the invoice is up round $200+.