How many elves are hiding in the royal mail app

I think there may be some confusion here!

There are no elves hiding in the Royal Mail app. The Royal Mail app is a digital platform that allows users to track their mail and packages, pay bills, and access other postal services. It's a software application designed to make it easier for people to interact with the postal service, not a magical realm where elves might be hiding.

Elves are mythical creatures that are often depicted in folklore and fantasy stories, but they aren't real entities that can hide in digital apps or physical spaces. So, I'm afraid there aren't any elves hiding in the Royal Mail app or anywhere else for that matter!