Missing Challenge Trophies

Yep, maffa50 is correct. You should be able to find your Challenger Trophies under the Challenge Rewards header in the Decorations tab, while you're in your hideout.
Found here!

If you're unable to see these, please send us through an email at support@grindinggear.com. If you can also send through a screenshot of what you can see under your Challenge Rewards header, we'll be able to look into what's going on. :)

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