Upcart—Cart Drawer Cart Upsell

This app has many restrictions that aren't told you to you upfront until you discover them yourself and ask the support team (to which their answers are simply, "our app doesn't have control over it"). Free rewards cannot be restricted on cart pages (only sliding cart), and even though I need the order tag to be free of tags, upcart just dominates that space affecting my normal business processes. When asked their response is, "we need that space too". I've only been using this app for a week or so, and not only are the restrictions affecting my processes (customers are literally adding dozens of free rewards with no restrictions), but upcart has been no help in trying to find a solution.