The following is part of paypal legal agreements
"A buyer can file a dispute in PayPal for two reasons: "Item Not Received" or "Significantly Not as Described". Disputes should be filed within 45 days of the initial payment.
If the dispute is escalated to a claim, PayPal will investigate your claim and make the final decision. PayPal will seek to resolve your complaint within 30 days from the date your complaint is filed, however, this timeframe can be extended to accommodate the investigation."
We highly value customer satisfaction. If there are any problems with the product or our service, please communicate with us directly before filing a dispute in PayPal (It has a great impact on our PayPal account). We have tens of thousands of customers from all around the world, and highly value repeat customers. We will work hard to solve any issues as soon as possible.