Amex Credit Card Complaint

Amex Credit card department,

Billing statement California

American Express Corp. overcharged my account on numerous occasions. After adding my credit card statement by calculator, I come to a different amount than their computer calculator every single time. I pay the amount due '', however, I called on - specific incident and they took - hours of my time arguing back and forth with me to finally realize I was right - the computer made a mistake and they credited my account. However, it 's showing up more than ever and I do not believe I am the only - blinding paying more than what 's due ...