My husband has had a very high balanced credit card with Citibank for 15 years, we don't use it often, however due to circumstances, we have had to resort to using it. I was late ONCE making my payment, within 30 days, and they increase the interest rate to 29.99%!!! This is insane. My payment on this card a month right now is $700!!! Then they have the audacity to send a letter in the mail that "they care" about their customers and to contact them to discuss the account! I can see jacking rates up if we were habitually late on our payments, but one late payment and with a $25,000 credit card, obviously good credit, why would you do this to someone. Will never use this card again once it's paid off, you all should be ashamed!