1. The most common and easiest way is through the main app (LEET v2). Click on 'CREDITS' then 'BUY CREDITS'. Select the amount of credits you wish to purchase and complete the confirmation.
2. The second option is by downloading the LEET Donations app (Android) or LEET Co-Payments app (iOS). Put the username you wish to show up in the log and the server IP address. Select the amount of credits and complete the confirmation.