All reservations must be guaranteed with a credit card. Attention agents please note that in all bookings you need to enter the credit card CVV code in the SI field of the booking or the booking will not be accepted as guaranteed reservation. Cards Accepted for guarantee are VI- MC-CA-IK-EC-DC and JCB. Please note Visa Electron and Cirrus Maestro are not accepted for Guarantee. Electronic and or Invalid credit cards will automatically be cancelled.