One of the requirements for the referral program is that your referral must make two separate payments of at least 5 euros each by card. A single payment of 10 euros, for example, will not be considered.

These two payments must be marked as "Completed" to be validated. After they are made, they may remain in "Pending" status on your account for a few days before being finalized. Only once this process is complete will the referral condition be considered fulfilled.