[INFO] license question

Hi, i’m sorry, i’m annoying you again!
I’ve the free license, and i saw that it allows 30 reservations, but i can’t find the limit.
I’m writing to ask you if the limit is for simultaneous reservations, or total?
I mean, i need to use the plugin for a very small website (i think about 10 reservation for month).
How does it work?
1) If i reserve a service for the 1st september, the 2nd september, it will delete it and decrese my 30 reservation limit?
2) The 2nd september, i have to delete the reservation manually, and it will decrease the counter;
3) It will never decrease the counter and i have only 30 reservation in total, so i can use the free version only for 3 months and then i have to buy the pro version?

Thank you again!! ??

https://www.ads-software.com/plugins/salon-booking-system/