Amex Credit Card Complaint

Amex Credit card department,

Closing/Cancelling account Illinois

I received a credit card from - -. They sent the card and after I used it, they said they have to close the account because I made a large purchase. The card does NOT have a credit limit so its not like I went over my credit limit. Also, I paid the full balance in full. They are saying that since I ca n't produce tax returns and I made such a large purchase, I have to close the account. However, when I applied for the card, I told them that I just started working in - -. This means that my first tax return would not be produced until - of this year ( - ). I do not think it is fair for me to have a recently opened account being closed on my credit and causing my score to go down. I am prepared to take this complaint as far a I have to in order for justice to be served.