No worries. If unfortunately you have to cancel your order, please do so within 4 hours of placing the order an e-mail to email@example.com. We will deliver the same item you will order hence in this situation replace of order will not take place.
In case you have already paid for your order, refunds will be made in the same form that the payment is received within 10 working days from the date of cancellation of order. (As per Bank/Payment gateway norms.)