Wow. I'm cancelling my instacart account immediately. They've made so many mistakes in the past, but I liked their app. But this crosses the line by a mile. When I give someone a tip, it's not because I chose to pay more for an order just for fun, it's because I want the worker to get extra. They don't get to charge me a service fee, and ask me to tip, and then not give the worker my service fee. That's just crazy.