MCI typically issues bills on a monthly basis for its services. Customers can expect to receive their billing statements around the same time each month, depending on the billing cycle established during account setup. The billing statement will detail all charges incurred during that period, including any usage fees, taxes, and additional services. It is important for customers to review their bills thoroughly each month to ensure accuracy and address any discrepancies in a timely manner. For information regarding specific billing dates or changes to the billing cycle, customers may find it helpful to look on the official MCI website. There, they can find the latest details and resources pertaining to billing and account management.