Your personal link opens the PickBot website with your referral code.
PickBot's referral tracker remembers that visit in the visitor's browser.
When the visitor starts the Inner Circle from that browser and returns to PickBot's welcome page after checkout, the subscription is credited to your account.
For the best tracking
Ask people to sign up on the same device and browser where they clicked your link.
Ask them to let the checkout finish and return to the PickBot welcome page.
Private browsing, cleared browser data and some ad blockers can stop tracking.