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    Key Redemption

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    Product Registration Help

    To access purchased content or to download files from the Companion Website, you will need to create an account and register your product.
    Sign in to an existing account or register a new Cheng & Tsui account and enter your product key exactly as it appears.

    (Note: Some products will require you to answer a validation question instead of entering a product key.)

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Retailers Returns Policy

  • Written request is required for all returns, whether overstock, damaged, or defective.
  • Requests for return authorization must include the correct invoice number, the invoice date, and original quantity purchased.
  • Overstock returns will be accepted for regular stock titles between four months and one year from invoice date. Invoices for these books must have been paid in full prior to such return.
  • Requests to return damaged, defective, and class cancellation books must be made within 30 days of receipt of materials.
  • Not all materials are returnable. Please e-mail or call if you're not sure.

Please Note: All software, audio CDs, audio tapes, video CDs, videotapes, and field test editions are nonreturnable.