Simple guide to use PlayerUp's Middleman Service for your Sales and Purchases... [Simple Guide] Playerup Middleman Service - New Members Read This! - UPDATED | PlayerUp Accounts Marketplace. Player 2 Player Secure Platform. If you are the seller... Getting Started: How Do I Sell / List Items For Sale? | PlayerUp Accounts Marketplace. Player 2 Player Secure Platform. Middleman: Sellers Guide | PlayerUp Accounts Marketplace. Player 2 Player Secure Platform. How will middleman services contact me? All middleman transactions are conducted on PlayerUp.com only. Never release any information, perform any service or release any payments if you're a seller unless @Middleman contacts you through the Conversation Ticket System. PlayerUp Middleman Services will never contact you through e-mail, discord, steam, facebook, whatsapp, kik, skype, or any 3rd party service. If somebody contacts you offsite claiming they are from PlayerUp, it is a scam.