If you want to participate in the referral program you need to register here: https://keitarotds.com/clients/sign_up. If you already have a Keitaro TDS account you do not need to register again.
The page with referral statistics is available at https://keitarotds.com/platform#/affiliate. On this page you can get a referral link, track referral fees and order a payment. We pay referral bonuses by PayPal and WebMoney.