Capital One Credit Card Complaint

Capital One Credit card department,

Closing/Cancelling account Maryland

Capital One recently canceled my credit card without providing me with an explanation. Capital one called me two weeks ago and said there was suspected fraud related to my card and I needed to upload personal documents online in order to verify my identity. The documents requested were : a copy of my passport, the front and back of my social security card, and a bank statement. I provided the documents through their online portal and received a call the next day notifying me that I should call them. When I called them I was told that my account was permanently suspended because of fraud related activity. I asked them for an explanation, but was told they can not provide -. I asked why a fraud investigation was being conducted in the first place and I was told they can not tell me. Prior to receiving the initial call there was no suspicious activity on my account. I 've held a card with Capital One since 2007. In the end the only answer they gave me was " I 'm sorry Sir your card is permenantly suspended, you may apply for a new card. '' My concern is two-fold. First, I deserve an explanation for why my account is being canceled. I 've never had a late payment the entire time I 've held the card. Second, if Capital One did indeed find fraud related to my account I would like to know so that I can take action to ensure my other accounts are no compromised. What can I do to obtain information as to why my account was canceled?