C.V.
I don't do rewards charts. They don't work in the long term, and the fact is they aren't a realistic reflection of life. Nobody in this world is going to be putting gold star stickers on a chart and giving you a prize at the end.
I give my kids directions, and, if I'm getting the vibe that they aren't hearing me or don't fully understand, I'll ask that they repeat them back to me. "Do you understand? What did I just ask you to do?" And then send them on their way. "Okay, go do it. Come back and ask me if you get confused."
Refusal to do something, like cleaning up a room, doesn't result in a star not added to a sheet (big whoop dee doo)....I just tell them, "You have to complete this task before you can go do what you want to do."
That's a real life consequence. And that's what you should be using if you want anything to get done and directions to be followed.
Good luck!