charispax

I have a perfect credit report, not nicks or bumps. Recently one of my credit cards went from a promotional rate of 7.9% to 24%. I called to negotiate a rate reduction. There was a 3.9 and 5.9% balance transfer offer on this card. After talking to the representative and pointing out I have always paid on time with the exception of twice when I was late one day because their "alert" system failed, the result was a reduction on over $23K in credit across four cards. My score also dropped as a result. THIS resulted in a $16K credit reduction in another card a month later and $18K on another card. How can it be legal for them to do this and impact my credit rating? I sent my report as proof!