Every line that is enrolled in Cricket Rewards will earn mPLUS Points for certain things that you do at the account level, such as adding a new line to your account. Plus, if one of your lines is not enrolled, they can still earn points for these actions as long as they enroll within 30 days.
EXAMPLE: Let's say you have two lines on your Cricket account, and line A is enrolled in Cricket Rewards, but line B is not. Then you add a new line to your Cricket account (line C), and line A earns mPLUS Points. Lines B and C would then have 30 days to enroll in Cricket Rewards to earn mPLUS Points for
adding the new line.