public String getLastName() {
   return details.getLastName();
 }
 public String getEmail() {
   return details.getEmail();
 }
 public String getCardName() {
   return details.getCardCommonName();
 }
 public String getCardExpiryDate() {
   return details.getCardExpiryDate();
 }
 public String getCardNumber() {
   return details.getCardNumber();
 }
 public ChoiceOfCreditCards getAcceptedCards() {
   return ChoiceOfCreditCards.all().select(details.getCardType());
 }