You can pay for the electronic version of the book in a way that is convenient for you. To do this, choose from the available options the one you prefer and make the payment. The payment date is considered to be the day when the buyer's funds were received in the seller's account.
Book delivery occurs in several formats. For this purpose, the email address you specified will be used. The shipping date is considered to be the day when the book was sent using the method the buyer selected during order processing.