The exotic contract Praxic Professional came up for me so I could get the yellow crystal. I loaded expert pinnacle Whisper and killed taken thrall with the praxic blade without dying. The contract didn't give me any rewards and now its gone. I gave it a couple days in case the rewards would magically show up, nothing came. Nothing at the postmaster or Rahool or the rewards kiosk. Without a ticket system I'm not sure what to do.