Hi @Hristina0 the referral link is in the drop down menu when you hover over Host when you are logged in. And, yes, you get credit when the host you referred has their first qualifying reservation. You can read all about it in these Terms of Service for Host Referrals:
I've just given out my link for listings to a complete stranger thinking it would only let them view the listing, however now I'm panicing as they may be able to see EVERYTHING...my account details, bookings etc. If this is true how can I now stop them?
@Fiona5 Could you clarify what kind of referral link you sent? If you sent a link to your listing (www.airbnb.com/rooms/xxxxxxxx where the x's are your listing's numbers) that's no problem. Let me know!