Hello , Sir . Are you still there ?   Yes , I'm here . What details do you need from me ?   Did you check with reception at your hotel ?   Yes , I did . But nobody has handed it in as yet .   OK , that's fine , Sir . We just need to ask you some questions for security purposes .   Please , go right ahead .   Could I have your name , please ? And do you know your card number ?   I'm Mike Kowalski and my card number is 5211678 44 , but there are some other numbers at the beginning . I'm not sure what they are . 