I paid $180usd for shoes that arrived damaged, I was offered a full refund, but have to return the shoes. The return tracked shipping is going to cost me $120 Canadian dollars. Who is responsible for the return shipping fees
If you go through the dispute / claim route and win then paypal normally tell you to send the item back for a refund.
So in the event of a dispute you need to bear in mind possible return trackable costs before you buy from that seller / item / country because....
Paypal state this >> PayPal is not obliged to reimburse you for any costs that you incur to comply with any of PayPal’s requests for cooperation for the purpose of resolving the problem (including, without limitation, costs that you incur to return a SNAD item to the Payment Recipient or another party as PayPal requests), although sometimes it may reimburse these costs.
Although they will compensate you for some of the cost if you have activated this at some point before you made that transaction.