The main task of the BS is the correct and complete client invoicing. The invoice should consider information about the use of services provided by the
marketplace. Billing system is responsible for the debiting of money from user accounts.
The billing system stores data about all operations performed by clients: income, expenses, cash balances, tariff plans, services used, bonuses, and discount programs.
Using billing significantly reduces the time for setting tariffs depending on services, products, promotions, and personal discounts. Also, invoices issued by the BS provide the user with the most transparent information about the services and their cost. Billing report data is submitted in a clear language and does not obstruct understanding of the principles of cooperation with the marketplace.