Two questions

  1. Are bonus streak rewards reset? I have the maximum bonus, I have opened the chest but the progress bar didnt reset.
  2. How works Daily Rewards?? I have all the time 20+ bonus but…what does it mean?

After reaching the Legendary chest your chest streak resets so you can earn the chests again. As for the daily rewards, these can change from day to day, and the bonus is a random roll on top of the base amount you see listed.