My app was searchable in App Store. Then for a week, I removed it from App store. Added some new feature and republished. Now it does not appear on search. My app name is unique and there are no apps with same name or extension

I have a SaaS solution for Beauty Services Industry.A Salon can download the app, create account and add users. They pay per user. Is there a way we can have seat based pricing with Apple subscription? The salon can add a user mid month or remove one and the rates should reflect those. I have tried all forums but I am not getting any way of doing this.