Final answer:
For unrecognized charges from Zappos.com, customers should contact the Billing Department to address the financial inquiry and resolve any discrepancies.
Step-by-step explanation:
If a customer does not recognize a charge from Zappos.com, the appropriate department to handle such inquiries would be the Billing Department. This is because the nature of the issue is financial; the Billing Department is equipped to investigate charges, process refunds, and address any billing discrepancies. Customer Service may assist with general inquiries, but for specific account charges, the Billing Department has the necessary access to detailed transaction information.
When contacting the Billing Department, the customer should be ready to provide any relevant information, such as the transaction date, the amount charged, and account details. This will enable the team to promptly look into the matter and resolve the customer's concerns.