For 900 billing disputes or inquiries, a number will appear with the call detail on your phone bill. You have 60 days from the date of the bill to dispute a 900-billing error. You have the right to withhold payment of the disputed 900 charges during the billing error review. No collection activity for disputed 900 charges will occur while the charges are under investigation. After investigation, if it is determined that the disputed 900 charges are legitimate, the long-distance carrier or the information provider may proceed with outside collections against your account for non-payment of these charges. Your local and long-distance service cannot be disconnected for non-payment of 900 charges. Failure to pay legitimate 900 charges may result in involuntary blocking of access to 900 services. Contact our office about voluntary blocking of access to 900 service.