If you have a lava claim addon, you can add it on the listing detail page. ( https://lava-code.com/directory/product/claim/ )
Please visit to the listing detail page and move to the template page you want to add.
Please find “Contact info(Single Listing)” widget and add it on a place you wish.
As you see ( if you want ), you can add some text or add background.
For the settings, you should visit “backend >> listings >> settings >> claim”.