To report a Lost or Stolen Credit Card: Please call the appropriate phone number listed below: During Normal Business Hours (M-F, 9 am-5 pm MST): 303-770-4468 or toll-free1-888-383-5926 After Normal Business Hours: 1-888-241-2510 Outside of the US, call collect 909-941-1398 If you have called after normal business hours, please make sure to contact the Credit… Read more »