If you are the Owner of your License, you can find this information from logging into your account > Clicking on your initial icon in the top right corner > Organization Settings & Billing > General.
This section will show you what your current plan is, the name, how many user seats are taken/of the total seats available, and when your plan expires.
If this is not what you’re looking for, please reach out to support@slido.com and we can share more details on the account via email.