how can I upgrade with points quickly
Pay your bills, reply the questions on the Fizz community.
3 points: Reply a question
5 points: Reply to a question that was published less than 5 minutes ago.
10 points: Be the leader of the day.
50 points: Be the leader of the week.
50 points: Be active on the Fizz community during the month.
50 points: Be selected as the best answer.
PS the best answer is more than a month that doesn't give points
It's a bug, I have an open ticket for this.
I know, and I also have an open ticket, that was closed and reopened :D
There's no way to really "quickly" rack up points and level up, the biggest chunk comes from spending money month over the month, the rest is being active here, but it will add up over time.