To activate a promo code on the website, log in to your account and click on your avatar in the top menu. In the dropdown list, select "Settings," then go to the "Payments" section on the next page. Enter your promo code in the corresponding field and click "Activate." Access to the books or the entire library will be granted automatically within a few minutes.
Promo codes work both on the website and in the Equalibra mobile app.