American Express Bluebird Closed Account with No Notice and Withheld Funds! New York New York

I attempted to add funds to my Blurbird account this weekend. Immediately upon attempting the transaction, it stated that the account I was transferring was not mine and canceled the transaction. The funny thing is that I have owned that account for at least 10 years, and there is no possible way that it is not owned by me. I then received an email that my Bluebird account was closed. The problem is that I not only have funds in the account, I also transferred last week funds from Walmarts Savings catcher program as well.

Right now those funds are being held hostage by American Express since I 'violated' their terms of agreement, at least according to them. I will take legal action against them if the funds are not returned. The amount of the funds is not important to me, but fairness is.