Ofter our customers see no insights for Bing in our Listings product. This is due to that Bing in some countries is not used as much as in others, therefore, even if there has been some data, it is still not enough for Bing to generate Insights and expose them via the API so we can display them in our Product.
The moment the activity on the pages increases to a certain threshold, Bing will start sending the Insights our way and they will be shown in our Listings product.