Learned this from a phone sale on Swappa (payments run through PayPal): the buyer refused delivery, and the carrier damaged the phone on the way back to me. If you sell on any marketplace, these are the risks that only become visible when something goes wrong:
**1. A refused delivery becomes your problem.** The package comes back to you. If it's damaged in transit, you now hold a damaged item *and* owe the buyer a refund at the same time.
**2. You front the shipping cost.** The label money is spent whether or not the sale completes. If the item comes back damaged, any recovery — of the item's value, and at best the postage — comes only through your own insurance claim, if approved, after photos, paperwork, and waiting. No insurance means no recovery at all. And insurance never covers payment fees.
**3. Making the buyer whole costs you the payment fee.** PayPal does not return its processing fee (3.49% + $0.49) on refunds. On a $600–$700 phone, that's roughly $20–$26 that nobody reimburses — not PayPal, not the marketplace, not insurance. The seller absorbs it.
**4. The refund itself has a trap.** In PayPal, typing in a refund amount — even the exact amount you received — makes it a *partial* refund, and the marketplace's fee may not reverse fully. The clean path is the unedited full refund. Fixing it afterwards is a mess.
**5. Don't count on "seller protection" or platform support for this.** A refused delivery plus carrier damage fell outside seller protection in my case, and when I asked the platform how the remaining fees should be handled, I was pointed to PayPal.
**PayPal fee: yours. Shipping cost: yours. Damage to your item: yours.**
Practical takeaways: insure for full value, photograph and video your packing, think hard about which carrier you trust with high-value items, and price in the fee risk before you list. When a shipment goes bad, the residual loss lands on the seller.