Once you file with Paypal they will immediately put a hold on the buyers accounts for the money so the buyers wont have your money for a month. This is the way paypal works and you should have read this when you signed up. Also once you open the disputes you should immediately escalate them. It probably wont take Paypal as long as they give themselves to refund your money if all 3 cases are as open and shut as you say. I can understand your frustration but Paypal takes care of buyers before sellers so you shouldn't have a problem getting your money back. It is possible that the sellers will not have the money still in their accounts. If this happens and Paypal doesnt refund (dont know why they wouldnt if the auctions had buyer protection on them)you can file with your credit card company.