6213 Factory Road, Suite B
Crystal Lake, IL 60014
Orders: 800-323-8270 • 815-363-3582
Fax: 800-909-9901 • 815-363-2948
Invoices are 30 days net from date of invoice and must be paid in U.S. dollars.
All individual orders must be prepaid by check, money order, Visa, MasterCard or Discover (include account number, expiration date and security code from back of card).
Shipping and Handling
The usual method of shipping is United Parcel Service F.O.B. Delta Systems warehouse in Crystal Lake, Illinois. The standard shipping charge is 12% of the total order with a minimum charge of $7.50.
Orders shipped to Alaska or Hawaii can be shipped Priority Mail or Second Day Air and an exact freight charge (with a minimum of $7.50) will be added to the invoice.
Sales Tax
Applicable sales tax will be added at order processing. Illinois residents must add 7.75%. If tax exempt, please provide a tax exemption number.
International Orders must be prepaid by check, credit card or wire transfer to our bank.
Shipping and Handling
Shipping is via “air” only, and the carrier is determined by the size of the order. We endeavor to use the most reliable, least costly, air service and exact freight is charged. Please contact International Sales for a quotation.
Bookstores may return materials within 90 days of original invoice date (unless it is a Delta Publishing title, which will be accepted within 180 days); all other customers may return within 180 days of original invoice date. All materials must be in resalable condition--not labeled, scuffed, marked or shelf-worn. (Please note that computer software, special orders for non–stock items and special print runs are not returnable. Defective software may be exchanged for same product only.)

Please enclose a copy of the original invoice or packing slip with the return to ensure proper credit to your account. Shipping charges are at the expense of the customer. Please pack books carefully as they must be received in perfect condition to receive credit. We request that materials be sent via United Parcel Service. We reserve the right to refuse any return that does not meet the above criterion. Any returns that are refused will be sent back to the bookstore at their expense.
Delta Systems welcomes the opportunity to provide 30–day examination orders within the continental U.S. only. Personal exam orders must be billed to the individual and are his/her sole responsibility. School or organization exams must be in writing on letterhead or purchase order and signed by an authorized representative. Delta Systems reserves the right to limit the quantity of items forwarded on a 30–day examination order to 1 each of up to eight items. Please note that certain items are not available for preview.
All examination materials will be shipped with an invoice. They are sent for a 30–day period only and must be purchased or returned at the end of that period and any return shipping charges are the responsibility of the customer. If you wish to return the materials, please enclose a copy of the invoice or packing slip and your account will be credited upon receipt. Please pack books carefully as they must be received in perfect condition to receive credit. Complete returns will result in cancellation of the invoice. For partial returns, you are responsible for payment of item(s) kept and the full freight charge shown on the original invoice.

In case of materials damaged in transit, please notify us immediately upon receipt of goods at: Customer Service. If the packaging is damaged, refuse the shipment upon delivery. If this cannot be done, save the package in the condietion it was received and immediately contact the carrier (either UPS or USPS) to report the damage. Do NOT return the books to Delta unless instructed to do so by the carrier.
If the packaging is fine and only the books are damaged, return only the books with a copy of either the packing slip or the invoice within 30 days of the Invoice date. After 30 days, all orders will be considered received in good condition.
In case of shortages or shipping errors, please notify Delta Systems within 30 days of receipt or such claims are invalid and the order will be considered complete.
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