Once the order was processed, especially out for delivery  it should not be cancelled and you can’t claim for refunds. In case of exchange after delivery check exchange policy

You can cancel the order within 2 to 3 hours with valid reasons such as address changes , any quantity or product variations. It will processed from our side based on your request. If there is any delay from your side orders will be processed based on the information provided by you

In case of duplicate orders or multiple payments, you can cancel the duplicate orders by contacting us immediately. You can also claim for refund for the duplicate order placed. Check Refund policy and contact us