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    Download your digital resources for Cheng & Tsui titles.

    Key Redemption

    Product Registration Help

    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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Return policy for individuals

If you are unsatisfied with your purchase for any reason, simply contact our Customer Service within 30 days of receipt of materials and we will walk you through the return process.

Please note: Software, digital products, audio CDs, audio tapes, video CDs, DVDs, videotapes, and field test editions are nonreturnable.

  • Please contact Customer Service and we will give you a RA# (Return Authorization Number). Please do not make any returns without an RA#, as they will be refused
  • Requests to return must be made within 30 days of receipt of materials.
  • Materials must be in saleable condition.
  • Refunds for returned merchandise will be issued to the credit card used to make the original purchase. Please note that refunds will be made for the cost of the merchandise only. Shipping and handling charges will not be credited.
  • Please allow 2-3 weeks after making the return for the refund to be processed.
  • Returns should be sent to:

Cheng & Tsui Company, RA# ________

c/o PSSC Returns Dept.

46 Development Rd.

Fitchburg, MA 01420


If you received a defective product, or something that was damaged in transit, please contact Customer Service immediately. Damaged/Defective claims must be made within 30 days or receipt of materials.