@Jonty5,
The badges frequently fail to work, as Airbnb changes platform reguraly and do not update the badges. Better not use them. It's also all written in Javascript end it has mostly errors, which gives (protection)software sometimes a signal it is malware.
BTW In my account the HTML is displayed when clicking on "Reviews" and "Rating", but there must be at least one listing displayed underneath this options. The badges only are for this listing, so also rather useless if you have more listings.
Alternate: You can create a link to your homepage and do some custom html-work around it.
https://www.airbnb.com/users/228029740/listings
Tip: upload a nice coverphoto to the homepage.
Best regards,
Emiel