So there's two ways to reroll quests indefinitely:
- Log in between 1AM - 4AM EST 3 hours before the new Daily quest and you can reroll at will.
- Manually reset your computer clock back between 1AM - 4AM and as long as you haven't used your 1 reroll for the day alraedy u should be able to reroll indefinately.
Some people have reported being able to get the 100g quest everyday others only once a week. Also there are differing reports on when people can reroll in different timezones. So please leave a comment if you are in a different timezone with the range of times you've found success.