Not enough investigation. Vendor is no longer selling, their website gives a 404 error code. I ordered a hand held battery operated minichain saw, what I received was a chain with two nylon straps. Where do I put the batteries? Paypal did zero investigation. I ordered Sept. 3rd, the vendor provided 2 FAKE tracking numbers then finally sent a stupid chain, showed that something was delivered and they (Paypal) denied my claim, 45 days after I disputed transaction. Don't count on Paypal to have your back, their "guarantee" sucks.