[zhte415]

Employee "What do I need to do in order to [be paid X/get Y promotion]?"

Boss "Are you sure you want to [be paid X/get Y promotion]?"

In a sane organisation, this conversation should be possible. As you're working remotely, the boss may be unaware of creep with more and more responsibility you're taking. They should be reminded. Most people I've met are incredibly bad at managing directs remotely.