1. Open the RedotPay app and tap [Referral Code (Optional)] on the log in screen.2. Next, enter the referral code in the field.Note: A referral code can only be added during registration, it can't be applied once your account is set up.Related ArticlesHow Do I Reset or Change My Password?How to Invite Friends and Earn RewardsHow Do I Recover My Login Details?How Do I Get a Virtual Card?How Do I Get a Physical Card?