Once an order is placed the address can not be changed. If you need to update the address you must cancel and reorder, however your order will start at the bottom of the queue. It is possible to switch the payment method from cash to debit card on your order while it’s in transit if the delivery and billing address are the same and the customer’s name matches the name on the debit card. You may not switch from debit card to cash after the order is placed.