We are aware of the issues surrounding collecting items from an in-game message(s). The team is working to resolve the issue and is hoping to have it sorted by the end of the week. More information and future communications will happen here.
https://forums.playcontestofchampions.com/en/discussion/329772/unable-to-claim-compensation-rewards-merged-with-info
We will be closing/merging any newly created threads related to this issue.
https://forums.playcontestofchampions.com/en/discussion/329772/unable-to-claim-compensation-rewards-merged-with-info
We will be closing/merging any newly created threads related to this issue.
Question that may have been answered, but...

Why exactly does heroic mode give more gold in fights than master mode?
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Comments
Unless you have more important things to do then grind arena for 3 hours (85% of the people playing) in which case you’re screwed