The customerwill have, in an only credit card payment module, the following options: credit card normal payment, credit card payment with tokenize(the store will remember the credit card, to respect the PCI law, the store won't save the credit card at all, just some characters so the customer will recognize it's card, and the card itself will be stored in Redsys), or to do a subscription(recurring payment), so if the customers are used to buy the same within an interval of time, they won't have to purchase it more than once.