Personal credits is a new kind of point system introduced in Raidcall - it's currency is Silver.
For the sake of your account security, personal credit can only be checked by the account owner.
Silver can be gained by keeping your account online, one Silver for each hour you're logged on.
If you're logged on for less than an hour, it will be counted and added to the next calculation.
In the future, Silver can be exchanged into gift boxes from treasure boxes.