Ban for playing tier 4 of Coliseum

The ban occurs when you beat Tier 3 of the Coliseum, using Luke, IG, and Yoda & Chewie, when they are level 30 or close to that level. 

Hello, folks. I’m scared to go further with Coliseum. Can you tell me with what boss were you banned. Or ban depends on tier only?

we can hardly wait the CG to answer…

Ok, thank you. Hope you get a response soon.

At the launch of the updated that's what I did but after a week I tried to be competitive and did my battles manually. And now it's been 48 hours since I've been banned and I'm still waiting for any response from CG other than telling me to appeal the ban through a google form.

Have you done this and been ok? Or are you still banned?

As long as you don't clear a tier you're good. Just launch the battle and leave immediately to get the daily done

Makes me not want to play, especially since they’re on holiday, I’m scared of missing a whole month worths of rewards and era units 

This also happened to me. Very frustrating. 

ally code: 938-994-572

Same here... with Ally Code 677163239 :( 
Got banned after completing Tier 3.

Experienced the same issue. Got banned after completing Tier 3 with level 30 Luke, IG, and Choda. 

Ally code: 489517331