Some experience: called, left no message

Call came from Greensboro, NC

I keep getting these calls from American Express.  Funny thing is that I'm not an American Express card holder.  Could be that someone applied for credit using my cell phone.

I am getting calls from American Express.  I don't have a card, I don't recognize the number.  This one is from North Carolina the other was from Arizona, but apparently both are AMEX.  This is no way to earn my business.  I haven't given them my cell phone number...as far as I am aware.  I left them over 15 years ago and will not be coming back.

This # called me on the weekend on a work owned cell phone.  They did not leave a message.