Oh! and "without any doubts of being scammed." we have you sorted here also as Particl uses a double deposit escrow aka MAD escrow or Mutually assured destruction escrow, seller has no incentive to rip you off as you can just refuse to release payment + security deposit if package not arrive. you also have no incentive to rip him off because he can refuse to release your security deposit. this keeps all actors as honest as humanly possible within a decentralized environment. future releases will include adjustable escrow and dispute settlement but right now it's just the basic MAD escrow.. but it works have used it a lot over past months.