I have a revolving credit card with Citibank. I have had an account there since XX/XX/XXXX. The maximum limit on that account is XXXX. The current balance is {$12000.00}. I used it to travel with a year ago and I have been paying it off monthly. I am not using it until I pay off the balance and I have not missed a payment, in fact I usually pay more than the minimum required payment. As of XX/XX/XXXX I received notice that my interest rate had been increased from 18 % to a punitive 29 %. I have never had a late payment and there is no reason for them to jack up the interest rate to a punitive level. 
