Establish and maintain relationships with individual or business customers or provide assistance with problems these customers may encounter. Receive payment by cash, check, credit cards, vouchers, or automatic debits. Assist customers by providing information and resolving their complaints. Issue receipts, refunds, credits, or change due to customers. Answer customers' questions, and provide information on procedures or policies. Offer customers carry-out service at the completion of transactions. Check to ensure that appropriate changes were made to resolve customers' problems. Refer unresolved customer grievances to designated departments for further investigation. Resolve customers' service or billing complaints by performing activities such as exchanging merchandise, refunding money, or adjusting bills.