Good afternoon. You may have heard or used Instacart before, especially now that grocery delivery is more popular than ever due to the COVID-19 pandemic. If you contact instacart customer service , Instacart grocery delivery service offers several advantages, the main one being the convenience of delivering groceries right to your door. However, the service may have drawbacks. Instacart prices can be more expensive than store prices. Instacart Express employees will be charged a 5% shipping and service charge.