AMERICAN EXPRESS CAUSED ME A LOT OF GRIEF TODAY. I can safely say that American Express really hurt my business today. It has also hurt my relationship with my vendors. I have an American Express card with "no pre-set spending limit". Now, I know that it is a trick. From $275, 000/ month, they have lowered my limit to $203, 000, then to $165, 000, then to almost nothing OVERNIGHT. No notice, no nothing! They hide behind their terms and conditions that says, "We have the right to decrease your credit limit at any time". Their... read full review »