Wix Invoices Collection Doesn't Exist

Hello, I can’t see Wix Invoices Collections in my database section. But there is an article about that from Wix here:
https://support.wix.com/en/article/velo-wix-billing-invoices-collection-fields

BUT when I try to console this:

wixData.query("Billing/Invoices")
  .find()
  .then( (results) => {
    console.log(results)
  } );

It’s work and shows me the results. Why I can not see the real database in the database section?