[tenous]

Since eBay doesn't accept international returns, I was wondering if "Item not as described" (dead pixels or some other defect) would be a good method to use.

Check their terms to Identify how you're covered under the said circumstances.

shipped by Pitney Bowes and then to my country by DHL Express.

Is the DNA an option for you?

DNA is an option, but it's a heavy item (8kg) and has tracking that will show it's delivered. DHL will probably take a picture of me with the product. (Here they don't leave it unattended). It's scheduled to arrive later today. Would DNA still work in this case?

Their terms say if the product is not as described (damaged, etc) I can ask to return it at the expense of the seller, and the seller has to either send me a label or give me a refund. But I don't know if it's that easy to "prove" it's damaged.

I'm reading your blog post about the DNA method right now.