reduce my current number of licenses

Hi Tomo, 

Welcome to the Box Community, I'm happy to help!

If you would like to reduce the number of purchased seats (licenses) from your subscription, kindly have the account administrator submit a request to cancel@box.com. Include the total number of seats you would like to continue purchasing in your email. We have a minimum purchase of 3 seats per account.

For more details, please take a look at this article: https://support.box.com/hc/en-us/articles/360044193073-Decreasing-Seats-From-Your-Subscription

Regards,