I am actually having the same problem: filing of an "item not recived" through Paypal from a fellow Powerseller. Fortunately I have supplied a valid Canada Post tracking # to Paypal which confirms the item is shipped out. But here's the problem:
* Item shipped surface from Canada to France, with a 6 week ETA., clearly indicated to customer.
* at exactly 6 weeks, buyer (also Powerseller) files item not recieved.
* 2 days later, after my submitting tracking info, buyer confirms a receipt of item, but demands a refund of $10 on shipping.
* Checked Canada Post, which has not yet registered the delivery.
* Buyer has not withdrawn his Paypal item dispute, and the 10 day limit is approaching.
So the question is, how can I contact Paypal to discuss this scam? Also, is there an email address where I can forward the buyer's confirmation of shipment? This would all be very helpful.
Sorry to see a fellow Powerseller displaying such dishonesty to another seller.