All Help Topics
Changing or Canceling Order
How to change or cancel an order you have placed with us
Order Status and Tracking
How to find out the status of your order and obtain the tracking associated with it
Request an Invoice
How to obtain an invoice from any previous purchases made with us.
Items Out of Stock
Why items are out of stock or on backorder and what it means
Order related notifications you may receive from us via e-mail
General Shipping Information
General shipping policies and procedures for all shipments
Shipping policies including damaged items, missing items, and undeliverable or refused packages
Return Policy and Instructions
Terahertz Store return policies and procedures
Information about what do when you receive a damaged product
Information about what do when you receive a defective product
All OEM products are sold with the full manufacturer's warrantyplease consult the information enclosed with your packaging for terms and conditions.
Learn how to create an account and what the benefits of having one are.
Checkout Security and Fraud Prevention
Setting up a terms account for wholesale or bulk purchases
Wholesale or Bulk Purchases
How to apply for a wholesale account and receive bulk discounts
Processing timeframes, placing an order, and order processing notifications
Review payment options available at checkout
How to place an order over the phone
Sales Tax and Tax Exempt
Sales tax, tax exempt, international taxes and when they are applicable
Complete list of store policies and procedures
Clearance / Discounts
Details regarding items put on clearance and current coupons or promotions
Click here if you have a question on a product we sell, a general order related question or just need to contact us.
Help with technical product questions, warranty information and part replacement.
Holiday Shipping & Hours
Please be aware of our Holiday operating times and shipping windows
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- Terahertz Store accepts VISA, MasterCard, American Express, Discover, PayPal, Apple Pay, Google Pay and Venmo. Once your order has been received and your payment information has been verified, your payment will be processed and Terahertz Store will appear on your billing statement.
- Based on your purchase item type, quantity or order dollar amount we reserve the right to request payment in the form of PayPal, ACH, wire or check prior to processing the order.
- For your security and to prevent fraud, if information used for a purchase appears to be potentially fraudulent, we reserve the right to contact you and request additional information before processing your order. This process may delay your shipment.
- All transactions will post after 5:00pm (CST) on the date of purchase.
- Upon submission of your order, you will automatically be sent an e-mail to confirm that your order has been received. (Please be sure to check your spam/junk mail for this notification)