A. After placing an order, check if there is an option to edit or modify your order in the order summary screen. If not, you may need to cancel the order and place a new one. To cancel, go to 'My Orders', select the order you want to cancel, and follow the prompts. Then, re-add the items you want to modify.
B. If the app does not allow modifications, consider calling the restaurant directly to see if they can accommodate your request. Keep your order number handy for reference.