I purchased the Hell's Rangers Pack but the Inbox in outriders is locked and I can't access the items that I paid for. I found that it seems to be a bug in the game.
I have reached level 10 and I've tried everything I've seen on Google, from re-launching the lobby to rift town numerous times, to fully quitting the game a bunch of times as well. I even deleted my low-level character and started all over again.
I have seen posts with this problem but their solutions do not seem to work on Stadia.
I'm so sorry to hear about that @Donaguz. My best suggestion is to write a support ticket that can be found here: https://support.square-enix-games.com/s/outriders-topics?language=en_US&game=outriders&topicId=0TO4L...
Hope this helps!