Get pay for shipping cost

[Oakswe]

I got something else in my order. At last the seller will give me a refound. But what the weong item back. I say sure but they have to pay for shipping. How can I get that? The case is that I need to put in a tracking info before get pay. But what about my shipping cost?

[kernowlass]

@Oakswe 

In the event of a dispute you choose your seller and not Paypal so you need to bear in mind possible return trackable costs before you go ahead and buy from that seller / country.

Paypal state this >>
IMPORTANT: You may be required to return the item to the seller or other party we specify as part of the settlement of your claim. PayPal Buyer Protection does not entitle you to reimbursement for the return shipping costs that you may incur.

Although they will compensate you for some of the cost if you have activated this at some point before you made that transaction.
https://www.paypal.com/us/smarthelp/article/FAQ3544

You also have the option to do a chargeback via your card issuer instead of a Paypal dispute if you funded your Paypal payment via a credit card.