Was really excited to play this! It was a very good choice to use voice acting and I really liked that the objects rotated when displayed since it reminded me of old PS2 games. The visual feedback for when you don't buy anything is helpful and the whispers after buying can increase the tension of the game.
I think an indicator on where specifically to put your mouse when trying to buy would be helpful, maybe something on the screen, "hover mouse over phone then press e to buy". Captions for the voice lines is a good choice too for accessibility.