atm vsUnderstanding ATM Service Categories: CBR, VBR, ABR, UBR, and GFR. Explore the differences between ATM service categories like CBR, VBR, ABR, UBR, and GFR. LearnAn ATM card is a payment card, issued to the customers on request by the bank, that facilitates a customer to access automated teller machine and withdraw money any time. On the other