1~15 days of points are valid. When the first day reaches the 16th day, the points from the first day will automatically expire. That is, the points from the first day. After 15 days, which is the 16th day. If you have not used them, the points from the first day will be deducted. Only the points from 1~15 days will be retained.

At first, I had 214 points, and the day before yesterday, I grabbed an airdrop. The next day it became 181 points. Yesterday, plus the 18 points from completing tasks, I had 199 points again. But this morning, I looked and how come I lost another 18 points? Why does it decrease by 18 points every day? Please let me know, big boss.