It is solely up to the buyer and seller to communicate regarding an issue with an item.
You have two options regarding returns. One option is to try to come to an agreement with the buyer. Make sure you have read the seller's return policy prior to making a purchase. If you and the seller cannot come to an agreement, you will need to open a case on Paypal.
Hangar Swap is not responsible for any transactions through buyers and sellers. Hangar Swap reserves the right to inactivate and/or delete seller accounts if found acting maliciously.