I am a platinum card holder. I was a victim of a crime that forced me to put a lot of money on my amex cards. Despite this, I otherwise had perfect credit and have never missed any payments, even for non-amex related loans or cards or utilities.Amex slashed my spending power and as a result, tanked my credit score. Even though I've been making 4 figure payments on the regular, they refuse to allow a credit increase. Amex won't even meet me half-way. According to them my score is good at 705 (on their own site!). I make over 130k a year. I will keep the cards open to keep my credit good and spend 1 dollar on them for fun. No more!