I really like the idea, both having a "game within a game" and the narrative of sneaking with playing mobile games while at work!
But I think there was a lot happening or introduced to the player all at once. Like coldybear said it would be nice with a tutorial, and/or that the player got introduced to one thing at a time (Papers Please is a great example of how they introduce small mechanics that piles up in the game). It took me a couple of attempts to realize I could move both the phone and the client's information slip, and how to spawn the forms (as there where no indication that the paper trays where interactable). Unfortunately I didn't manage to earn anything as I couldn't figure out what form to use 😅 But a bit of polish and its a solid game 💃