You can tap on 'eCards' in the homepage or Explore page and search for the eCard that you are interested to purchase. Once you have read through the eCard details page, click 'Buy Now', confirm the details from payment confirmation page and proceed with 'Pay Now'.
Note: eCard is strictly non-refundable / non-cancellable / non-exchangeable upon purchase. Please ensure to read the Fine Print of the eCard page to find out more details about the eCard before purchase.