I've noticed when I click on a date it shows our night price correctly at $680 NZD in the right side of the screen but underneath it says " Guests will likely pay $493NZD". How does this work as I have no discounts set. I've also noticed from a guest that cancelled that he was only paying $347NZD a night? How can this be as I've set not discounts.
When i simulate some bookings on your listing on available dates (only in feb/march) they all show $680 NZD a night, without any weekly or monthly discounts applied.
Maybe provide a screen shot of the "error" page ?
About the cancellation: Maybe you received 50% of the normal price as calculated by your cancellation policy ?
@Andrew2497 this is possibly an Airbnb price tip trying to encourage you to reduce your rate. Even if you want 100% occupancy these price tips are best ignored.