I have a car 72 month fixed rate Loan with BB AND T bank. 
I never had late payment I always make payment on time but the interest keeps going up. 
I want to know why it 's keeps going up. I usually pay total {$470.00} per month with interest of {$61.00} BUT it keeps going up and I 'm currently paying interest charge of {$75.00}. 
I want to deduct principal so I pay extra per month but the bank always charge more interest every month. 
I need help. 
