Wed, 08/16/2023 - 11:52 Tech Insider Instacart shoppers aren't allowed to give customers the paper receipt from their trip the store when they deliver groceries and other goods for the service.Dania Maxwell/LA Times via Getty Images Tags Retail, Tech Insider, Grocery, Food, instacart, Delivery, eCommerce, Shopping Centre Source An Instacart customer said she discovered the app's higher prices cost her near…