All registrars must pay for at least 100 domain name subscriptions each calendar year.
You can check your activity on the registrar web under “Domain portfolio” and Transactions.
If you have not registered or extended at least 100 domain name subscriptions by the end of this year you must pay a fee that covers the difference between the sum of 100 subscription fees and the amount that you have already paid for subscriptions during this calendar year. The fee will be billed in January 2023.