Hi there! Looks like some folks above already got you some helpful answers in terms of you being able to purchase the corresponding individual cosmetics each month based on your existing package level, and you'll need to log in first to see those available in the Shop! We've also got a handy support article for you here that may help explain a bit better as well.
I'm going to go ahead and move this thread on over to our Support & FAQ section and close it out since this is a more account-related topic, and I recommend checking out that section first if you have any follow-up questions that we may have answered previously! Of course, if you have any additional questions that we haven't seemed to answer before, please feel free to open back up another thread