Flight Steam Code Revoked & STILL No New Code

HELP!!! I received an email from halo waypoint on September 2nd with my Steam code for the flight, downloaded it that day, and then later it got revoked. And then another email on the 20th saying that I’ll be participating on the new dates, but I still haven’t received any new code to download and my old one was revoked and says I can’t reuse it. Please help!!! I got ghetto internet and need to start downloading now so I can actually participate especially with the weird new given times.