The "Cash on Delivery" system is currently discontinued, so you don't have to worry about it. Once the order had already been placed, you couldn't switch to cash delivery even while it was still available. If you insist on paying in cash, you would have to cancel the current order and place a new one. Here's how to cancel a DoorDash order via the app: 1. Go to the "Orders" tab in the DoorDash app. 2. Select "Help" in the top-right corner. 3. Click "Cancel Order" in the "Help Menu." Or click "Cancel Order" under "Order Details." 4. Follow the prompts on the screen. Remember, however, that you can only cancel an order that hasn't yet been delivered. If the restaurant hasn't confirmed your order and the Dasher hasn't been assigned, you will get a full refund. If the restaurant has confirmed, but the Dasher hasn't been assigned, a partial refund is possible. Last but not least, you will not receive a refund if both the restaurant confirmed and the Dasher was assigned to your order.