BB&T Financial Consumer Loan Complaint

BB&T Financial Consumer Loan department,

Vehicle loan Managing the loan or lease Maryland

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.