![image](https://assets.leetcode.com/users/images/f90ad958-4512-4f33-b943-b83f5c6d31dc_1643688702.1957872.png)\nAs I see on the last line, it says "Upgrade the premium to unlock the card forever". So, what if I upgrade to just 1-month premium ? Still the card be unlocked forever ? \nCan admin or anyone explain this for me ...

\nAs I see on the last line, it says "Upgrade the premium to unlock the card forever". So, what if I upgrade to just 1-month premium ? Still the card be unlocke