1. Order Accuracy: If your order is incorrect or missing items, you can usually request a refund or replacement for the affected items.
2. Cancellation: Depending on the app's policy, you may be able to cancel your order and receive a refund if it hasn't been prepared yet by the restaurant.
3. Payment Issues: If you were charged incorrectly or faced payment-related issues, you can usually contact customer support for assistance and possibly a refund.