Charge cards, such as American Express and Diners Club, have no credit limit. You can usually charge as much as you want, but you are required to pay off your entire balance when your bill arrives. Charge card companies make their profits by charging very high annual fees and by charging merchants fairly high fees each time a customer pays using the company's charge card. If you don't pay your charge card bill in, you'll get one month's grace, when no interest is charged. After that, you'll be charged interest and if you don't pay after about three months, your account will be closed and your bill sent to the collections department.
Many people use their credit or charge cards to obtain cash advances.
Cash advances are generally more expensive than standard credit card charges. They also charge interest from the date the cash advance is posted, even if you pay it back in full when your bill comes. Finally, the interest rate is often higher on cash advances than it is on ordinary credit card charges so check your credit card agreement carefully. ATM cards are issued by banks, essentially to give bank customers flexibility in their banking hours. In most areas, with an ATM card you can withdraw money, make deposits, transfer money between accounts, find out your balance, get a cash advance and even make loan payments at all hours of the day or night.