The reward is provided by Airbnb when the referred host completes a qualifying stay which is "A qualifying stay is a reservation that’s valued at $100+ USD or the local equivalent (before taxes and fees)"

You can either use the link to open a Chase account or after you opening the account using the Chase app you can go to the rewards section and add the code which will give you £20 pounds for free :)

For this referral to work you have to 1. open a Revolut account using my link, 2. verify your account with what Revolut asks you, 3. top up your account from another bank (not another revolut account), 4. Order a physical card 5. and make 3 purchases of at least £5

Just open an account with my referral code or link and fund the account with a minimum of £1 (either the Invest or ISA account). You have to fund the account within 7 days for opening the account. Stock will appear in your account in around 3 days after you have opened it and funded the account. Stock is a random choice from Trading212 Happy green trading :)