Credit cards?

[JenMarie]

I have a pretty decent credit rating and 2 credit cards. One is completely paid off (Cap 1) and the other has a balance on it but it's new and I haven't gotten the bill yet (Credit Union.) I have heard all sorts of horror stories about Cap 1 so I wasn't going to use it anymore.

I got a letter in the mail from Cap 1 saying that my default APR is going to be raised to 19.9% unless I opt out. Now, it doesn't really apply to me because there is no balance on the card and I paid it off every time. BUT they are giving me the option to cancel it. I can just say, oh, I don't want the card any more because I don't agree with the APR even though I don't intend on using it again.

My question is, if the card has a zero balance and they are giving you the option to cancel it because you don't agree with the change, how much will it affect my credit score? Or does it matter? (A cancellation is a cancellation type of thing.)

I just don't want them to randomly charge me for NOT carrying a balance and this could be my way out.