Thank you so much for the detailed review and constructive criticism! I'm glad you enjoyed the not-so-serious vibe. I agree that some NPCs can be a bit too confusing and maybe indeed we should have left a bit more headroom for mistakes and feedback to let the player know if they missed a good customer. Overall a combination of running out of time and of course just plain mistakes which is why play testers are so important.
We will take your tips to heart and thank you for playing the game :D