CODE SHOWS DUPLICATE

CODE SHOWS DUPLICATE
every time i tried to redeem this code in steam which i never have before it says it is duplicate or redeemed already which i never have, the preview is the 24th hence i have not been able to use the technical preview flight… so do i wait for another code or wait till the 24th?please someone help me cause no is able to assist me.

> You have been selected to participate in the latest Halo Insider flight for Halo: The Master Chief Collection on PC through Steam!
>
> To find recommended play sessions, read the Known Issues list, and learn more about the content within this flight, please visit this article on the Halo Support site: MCC’s Season 8 Flight Overview.
>
> To access and install the flight on Steam, please follow the steps outlined here: Install Instructions.
>
> Your personal Steam product code is: 84ZQ8-Z04VH-XXXX (to hide)
>
> As a reminder, all the information included in this message can also be found within your Halo Insider profile under the “My Flights” section near the bottom of the page.
>
> Thank you,
> 343 Industries

The key you’re trying to use is for MCC and not Infinite [says so in the message btw], Infinite keys have not been published yet.

Invites to the Halo Infinite tech preview will be rolling out later this afternoon (23rd September) [PST - this could be anywhere from 1 to 5ish hours from now] when the build becomes available for pre-loading. This will include a DM in your Halo Waypoint Message Inbox with all the links to download/install instructions on the Halo Insider Support Site and access to any Steam Keys [if applicable] on your Halo Waypoint Insider Profile [be sure and check that they are for Infinite and not MCC].

Access to the game will turn on tomorrow morning with the first PVP flight starting Friday, September 24 @ 10am PST

Please see the latest blog for further information:
https://www.halowaypoint.com/en-us/news/multiplayer-technical-preview-overview