I saw the following news article about credit cards on CNN.com today:
In the article, there is a couple that talks about Chase messing around with the people's payments. My wife and I once had a Chase credit card. One of the worst cards I've ever had in my life. They messed with my interest rate. They changed my due date. Finally I was sick of them and moved the balance to another credit card. Because of that experience, I've vowed to never own another Chase credit card ever. That was about five years ago. And we haven't been back since. Their loss and my gain.
My word to the wise - choose your credit card company carefully. And if someone starts messing with you, just switch to a different bank. Hopefully, you can switch to a different bank.