Anyone have any experience with calling AmEx & getting them to match/increase the signup bonus on an existing AmEx card (I got this card about 1 month ago)? I just called AmEx, agent said AmEx is super strict, they don't change signup bonuses retroactively. I don't want to waste my time HUCA'ing if that's true.
Very weird if true, as AmEx is supposed to have superior customer service, yet Chase just matched two signup bonuses for me!