You can contact the agency with which you have a debt to determine if your debt was submitted for a tax refund offset. You may call BFS's TOP call center at the number below for an agency address and phone number. BFS will send you a notice if an offset occurs. The notice will reflect the original refund amount, your offset amount, the agency receiving the payment, and the address and telephone number of the agency. You should contact the agency shown on the notice if you believe you don't owe the debt or if you're disputing the amount taken from your refund.