Interest will almost always begin to accrue immediately when you use a bank credit card to send payments. get cash advances. all of these. compute finance charges. make purchases. The Federal Reserve's changes to credit card rules included all of the following except Your credit card company can't charge you inactivity fees, such as fees for not using your card. Your monthly credit card bill will include information on how long it will take you to pay Coff your balance if you only make minimum payments. Your credit card company must send you a notice 45 days before they can increase your interest rate If you are under 21. you will need to show that you are able to make paymeats, or you will need a cosigger, in order to open a credit card account If you are under 21 and become at least 45 days delinquent on your credit card balance. you can request the amount be discharged The major credit bureaus that gather and maintain the information about you that is included in your credit report are Experian, Equifax and Fair Isaac Equifax, Experian. Fair Isaac and TransUnion Equifax. Experian, and Trans Union Equifax, TransUnion and FICO