How Does An claim against a scam?

[LadyPippa]

I believe that a sale could be a scam.

Buying "pay after delivery" is not available.

If I pay and I get an empty box or a fake item, I open a Problem and convert the dispute to a claim.

But if the seller says that the item has been shipped and it was true, how does Paypal to decide who is right and lock my payment and refund me?

[kernowlass]

@LadyPippa

You need to read up on buyer protection and risk assess your own transactions.

Paypal protection can never be a 100% coverall.

[LadyPippa]

I read this but it is not clear

The seller sent me a bill.

I can pay by credit card.

If the seller send me an empty box as I can prove it to get a refund from paypal?