If you forgot to add your referral code during the sign-up process, please reach out to us right after via our contact form or Live Chat. Just let us know which referral code you wanted to add, so we can still add this manually.
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Please note: We can only apply the referral bonus within one month of your sign-up. Unfortunately, your personal referral code cannot be used retroactively to claim the bonus on your personal account - it needs to be an Ostrom referral or from friends or family.