voice pack from watching championship on mixer

I had my account linked and watched on mixer but I never received the pack. Has this happened to anybody else?

Hey OP, unfortunately to have an investigation opened into missing Mixpot rewards you need to make a post on the XBL Support Forums within 2 weeks of the event. They are no longer accepting new requests for this reward I’m afraid.

You can read more in the Mixpot FAQ:
https://support.xbox.com/games/game-setup/xbox-mixpot-faq

The Support forums are linked in there, but I’ll link here for ease as well:
https://forums.xbox.com/en-US/forums/0d7dc557-ea57-4938-a0e8-7f05d0a019fe_e2e46498-6402-4c6a-b958-69d89563efc1/General-Sales-Promotions