We take privacy very seriously, which is why the information you share with us when you sign up as a Seller is never given to anyone besides Jungle Scout personnel.
The one exception is your seller support email address.
When listing a product you will be asked for that support email, and it will be listed on your product's set up page and shared with your 'Approved' customers. This allows them to contact you directly if they have problems with their promotion codes, have an issue with shipping, need a replacement because the product is broken, etc.
Make sure you keep an eye on your inbox for the email address provided! If any of your buyers are having problems they will send you an email here, this will be a great way to make sure your Customer support game is on point.