Post stop-payment notices to prevent payment of protested checks., Verify accuracy of billing data and revise any errors., Verify signatures and required information on checks., Prepare itemized statements, bills, or invoices and record amounts due for items purchased or services rendered., Perform bookkeeping work, including posting data or keeping other records concerning costs of goods or services or the shipment of goods., Operate typing, adding, calculating, or billing machines., Resolve discrepancies in accounting records., Contact customers to obtain or relay account information., Review documents, such as purchase orders, sales tickets, charge slips, or hospital records, to compute fees or charges due., Keep records of invoices and support documents., Route statements for mailing or over-the-counter delivery to customers., Monitor equipment to ensure proper operation., Fix minor problems, such as equipment jams, and notify repair personnel of major equipment problems., Weigh envelopes containing statements to determine correct postage and affix postage, using stamps or metering equipment., Compare previously prepared bank statements with canceled checks and reconcile discrepancies., Match statements with batches of canceled checks by account numbers., Take orders for imprinted checks., Encode and cancel checks, using bank machines., Consult sources, such as rate books, manuals, or insurance company representatives, to determine specific charges or information such as rules, regulations, or government tax and tariff information., Track accumulated hours and dollar amounts charged to each client job to calculate client fees for professional services, such as legal or accounting services., Update manuals when rates, rules, or regulations are amended., Compute credit terms, discounts, shipment charges, or rates for goods or services to complete billing documents., Load machines with statements, cancelled checks, or envelopes to prepare statements for distribution to customers or stuff envelopes by hand., Review compiled data on operating costs and revenues to set rates., Estimate market value of products or services.