PayPal will charge you if the product you receive is very different from what the seller describes, or if you never receive the product after payment. In the event of a PayPal dispute, you can contact the seller directly to resolve or discover a problem so that PayPal can investigate and resolve the situation on your behalf.

What are PayPal Disputes?
PayPal Dispute

Filing a PayPal Dispute

If the buyer is dissatisfied with the deal, they can submit the dispute to the PayPal Resolution Center. If the seller receives a message explaining the problem to the buyer, they can issue a refund or provide other ways to resolve the dispute. If the seller ignores the dispute or cannot offer the buyer a satisfactory solution, the buyer must send it within 20 days. Discussion.

PayPal dispute
There are several stages to the next Collect PayPal Disputes.