Amex Credit Card Complaint

Amex Credit card department,

Identity theft / Fraud / Embezzlement Texas

I have a - account and always have had a credit card in file. Once I was purchasing online and went to revise my - account. Suddenly, a window popped up asking me to accept a - - account. It did n't let me go further until I accepted the - -. In addition, There was not link in small font saying " no thanks, take me to my account ''. After accepting the - - I was finally able to pass that window and do whatever I was going to do with the account. After that, essentially a - - was created on my behalf. I called - and cancel the - - on - 2015. Everything was fine until now when they are saying that I bought an item with the - - and because I did n't pay, interests have been running for 6 months. I called them up and they said that the information was sent to me via email but they can not resend that particular email. There is not more information in the - website neither in my - profile. What can I do? Thanks- -