Chargebacks are common in paypal where good/services have been paid for and not been delivered.
If I sell an item on eBay, I need to send it via signed-for/special delivery or parcel force (something WITH a signature on receipt) otherwise if the item gets lost, I am responsible and the buyer gets their money back ... hands down.
But what about if someone is collecting an item from me ? How can I prevent the collector from denying they collected the item and tell Paypal they never did collect it ? Will a signed home-made receipt be good enough ?