Multi-Channel multi-agent Chat System

Hello, I need a system that I can put on a server and provide service for 10 agents or more to give service to clients. I need whatsapp, fb and webpage based chats. I am looking for someone that has something they can resell to me. I am not interested in developing a new solution. I need to demo this on Thursday. Please only bid if you have a system ready to go. Add the word watermelon to your account so I know you are not a bot.