You can earn credits in three ways: daily gifts, monthly subscriptions, and bonus points. All of these can be used to redeem MGX services.
Free credits are used first each day. You have 25 free credits per plan cycle, with a daily limit of 7.5 credits. Unused credits roll over to the following days until all 25 are used. The daily distribution may adjust based on earlier usage, but the total amount remains the same.
If your Credits are used up, you can upgrade to a higher tier at any time via the following page, and the quota will take effect immediately.
Settings → Plans and Billing page
Pricing → Payment Page
Cases where unused Credits will automatically roll over to the next billing cycle (rollover is only for one month, not permanent):
Unused Credits are carried over after an upgrade
Additional Credits (special cases) granted by the system on top of the daily fixed credits (7.5)
Credits earned by inviting new users
Credits obtained from redemption codes
Credits can be adjusted at any time according to the package tier