Auction Nitro tracks expenses accrued by buyers and sellers through an internal account. Any fees associated with Auction Nitro (such as featuring an item on the home page or making one bold to stand out more) are debited to the account. Once the "Maximum Debit" amount is reached, you will see a warning that you have exceeded it. You should clear your account balance using the "Clear Account Balance" link on the My Account->Manage Account screen. Failure to pay your account balance may result in account suspension in accordance with the Auction Nitro Terms and Conditions.