Well, I have been trying to access Bitz for the last few days, and I always end up with the error
Sorry, you have been blocked.
I tried changing devices and tried VPN as well. I actually reached out to them on Telegram and found that they have two additional mirror domains:
https://bitz19.io/ and
https://4bitz.net/. These domains were accessible to me. So I guess the problem was with the main domain.
Was anyone able to claim those free btc?
Yep, I just tried it a few minutes ago, it loads for a few seconds like the screenshot you shared, and the claim button pops up. I was able to claim 50 Satoshi. It seems like the amount increases if you collect Free BTC every day.
However, I noticed they have a nice tournament going on, which you can check here -
https://bitz19.io/tournamentsPeople with the biggest win from a single bet win the highest prize. 1 USD = 548.85 points.