You can now cancel an order when it is in packed/shipped status, as long as the cancel option is available on the Website. This includes items purchased on sale also. Any amount paid will be credited into the same payment mode using which the payment was made.
No, you cannot modify the shipping address of your order once placed, if you need to change the address contact customer care.
Go to the “My Orders” section under the menu of your Website and then select the item or order you want to cancel.
If you had selected Cash on Delivery, there is no amount to be refunded because you haven't paid for your order. For payments made via Credit Card, Debit Card, Net Banking, or Wallet you will receive a refund into the source account within 7-10 days from the time of order cancellation. If payment was made by redeeming the PhonePe wallet balance then, then the refund will be instant post order cancellation, which can be later transferred into your bank account, by contacting the PhonePe customer support team.