Not sure if this is what you’re asking, but worth noting: if you renew “up” (say, Deluxe to Signature) it doesn’t take effect until your current pass expires in 40 days. If you renew “down,” it takes place immediately. Which is stupid and seems illegal to me, but is what it is.
I found this out the hard way a couple of years ago when I lost parking privileges 40 days early.

They’d refund me the parking money each time if I went to a ticket booth and explained, but I was so, so annoyed.
Same thing happened to an acquaintance last year, so still seems to be the system.