Paypal offers no buyer protection at all on purchases on the Pentax marketplace. Its just a waste of money to use Paypal at all here, Paypal makes money off you at every turn - on exchange rates, fees etc., they are only useful for ebay transactions or some shopping sites that have a shopping cart checkout procedure AND are covered by the Paypal Buyer protection scheme:
To quote, Paypal's Buyer Protection conditions:
What must I to do to be protected? If you don't receive an item you've purchased or the item is significantly not as described, you could be eligible for PayPal's Buyer Protection. Here are some of the things you need to be eligible: - Buy physical items that can be shipped (the policy excludes vehicles such as cars, caravans and boats).
- Pay for your item with PayPal at an appropriate checkout. During the checkout process, you'll be advised if the checkout is eligible for Buyer Protection.
- Pay for your item in a single payment. Items purchased with multiple payments (like a deposit followed by a final payment) don't qualify.
- Raise a dispute within 45 days of payment. You will need a PayPal account to do this. You can sign up for one at the same time as lodging your dispute.