need help about subscripation

[ozzy47]

I have not used Paid Subscriptions, but let me throw this out there.

Lets say a user is a member of group A.
Now he/she purchases the first tier subscription (in January), and gets promoted to usergroup B. This subscription is for one year.

Then 4 months later (May) he/she purchases the second tier, thus promoting them to usergroup C. This subscription is for one year also.

Now what happens next January when the first tier subscription runs out? is he/she demoted back to usergroup A? Or does he/she stay in usergroup C until May? If so what usergroup does the user get out back to? To my understanding of the system, ti would put him/her back into B, as that is the group they were in when they purchased the subscription.