I just tried to claim the bundle and followed all of the instructions but when I opened the game nothing happened.
Same thing happened to me. I used the Amazon app and it wouldn't work. Google Amazon gaming, then sign in if not already signed in. Do a search for chee'ilth cause searching mcoc or even the full name of the game won't bring anything up. Then select the chee'ilth bundle, and hit redeem with the mcoc open. You'll then get a prompt in the mcoc app.
I am having the same problem. I followed all the steps. The first time it worked without any problem, I scanned the Qr code and it opened the game where I collected it.This time however, I tried all the possible ways. Tried claiming through my phone browsers, tried scaning the qr code, everytime instead of opening the game, it redirects me to the Google play store.I even tried uninstalling and then scanning qr code, install game and open it. Still nothing.That's the problem, It doesn't take me to the game, it takes me to google play store.