Contacting the seller is often the best way to solve a problem. You can find their contact details by going to your Activity and selecting the payment. They may be able to issue a refund or help with a return.
Make sure you file your dispute within the correct dispute-filing timeframe.
Here's how to open a dispute from the web:
To open a dispute on the app:
In a dispute, you can exchange messages with the other party in your Resolution Center to try to solve the problem.
If you’re unable to settle the dispute, you can escalate it to a claim. To escalate a dispute, we often require that at least 7 days have passed since the payment date.
By escalating a dispute to a claim, you’re asking PayPal to investigate and decide the outcome. A dispute will automatically close after 20 days unless it’s been escalated. Closed disputes cannot be reopened or escalated to a claim.