Capital One — Unreasonable Verification process

I have had a Capital One checking account for approx 10 years. I constantly receive pre-approved applications for cards that give % back. In August I applied for a Capital One Venture Card. I was told that since I had a Fraud Statement on my Credit bureau accounts, I would need to verify my identity. They asked for my entire Income Tax Return to verify my SS then told me the form was not acceptable because it said self-prepared. I explained that a friend who had Turbo Tax did my taxes and also had her submit a letter to ver that. I have sent in several Official forms showing my SS to include DD214; IRS Form 1099 SS Card stub which comes with the SS card. I have even applied for a Duplicate SS card which will not be sent in time for this application. In view of the fact that I am known to Capital One and the fact that I have submitted several official forms with the same SS listed for my name, these documents should be considered sufficient to verify my SS. I have done everything within my power to comply with the verification process. The last person I spoke to named Lisa IDWFT085, told me there was no complaint process except telling her and she would note it on my application. I am 72 years old and have not seen nor had to supply an SS card in years. To deny my application for an SS card is unreasonable especially since they have the official forms that show my SS.