completed sub-zero epic challenge but did not receive the milestone reward.

Same thing happened to me pisses me off cause I spent like 2 hours trying to complete this impossible challenge.

Same here. How can we report this?

I've completed this challenge 4 times now and it's not counting. It's even more frustrating that it shows me the 5 stars at the end. It's such a horribly designed challenge too, why do I have to play with the horrible slow commanders team who can't catch to save their life.

Yes I have also had this issue is there anyone that can help us with this