To receive payout you need to accumulate $100 or more from Unity Live help paid sessions.
Unity Live Help pays you 60 days after your first paid session. Unity live Help makes payments associated with each paid session within 60 days of the end of the corresponding calendar month. Your payout amounts to 70% of the total cost of your session (30% goes to Unity).
You might not receive payment if your payout profile is incomplete. See How do I complete my payout profile? to learn more about your payout profile.