@Davina14 They can payout whatever they want. See the terms and conditions of host referral.
Payment
If you are based in the United States, you will receive $360 USD for the first booking Completed by a Referred Host. If you are based outside the US, you will receive the equivalent in your local currency (i.e., the currency of the payment method that you have selected for payouts). Where applicable, the local currency equivalent will be calculated using a system-wide rate, known as the base exchange rate, for currency conversion using data from one or more third parties, such as OANDA. We regularly update the base exchange rate, but it may not be identical to the real-time market rate.
To qualify for any payouts, the Referred Host’s first received booking must have a value (excluding cleaning fees, taxes, and special offers) of at least $100 USD (or the equivalent in your local currency ). The Referred Host has 150 days from the date they are invited to Complete their first booking in order to earn the Payment.
All Referred Hosts must be new, first time Hosts. No payment will be made for listings created by current or former Airbnb Hosts, or for bookings made by family or friends of the Referred Host, or for bookings where either the Referred Host or the Referred Host's listing has the same address as you. Payouts will be made within 30 days of each qualifying event, to the payout mechanism you designate on your Airbnb account. The Airbnb Terms of Service as it relates to the application of taxes applies to any Program payout.
Whether a payout is due shall be a decision made in the sole discretion of Airbnb. Airbnb reserves the right to any remedy, including denial of payout or cancellation of your account, if fraud, tampering or other violations of Airbnb's Terms of Service or these Terms are suspected.
https://www.airbnb.com/refer/terms_and_conditions