Manage account balances to discover outstanding debts or other inconsistencies Collect all information needed to calculate bills receivable (order amounts, discount rates etc.) Check the data input in the accounting system to ensure accuracy of final bill Issue invoices and bills and sent them to customers through various channels (mail, e-mail etc.) Issue customer account statements periodically or whenever necessary Receive payments through various methods (cash, online payments etc.) and check for credibility Send reminders for payments and contact customers when assigned Update accounting records with new payments, balances, customer information etc. Answer questions and handle complaints from customers regarding bills Report on activity to upper management