T-Cubed Systems, Inc.

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How to Contact Us
If you have any questions or problems concerning RelCalc for Windows, please feel free to contact us.
In addition, we welcome your suggestions and comments: any ideas you have for improvements would be much appreciated.

T-Cubed Systems, Inc.
5776-D Lindero Cyn Rd #437
Westlake Village, CA 91362

Phone: (818) 991-0057
Fax: (818) 991-1281
E-mail: info@t-cubed.com
Web: www.t-cubed.com

- E-mail: The best way to contact us is via e-mail. Please include your company name and phone number in your message.

If you are currently using RelCalc and e-mail for technical support help, please also include your RelCalc Version/Build#/Serial Number: a screenshot of the Help/About RelCalc dialog is the best way to do this. Please explain your question or problem in detail, with screenshots if applicable (showing error messages, etc).

We try to reply to e-mails in a timely fashion: if you don't receive a reply within 1-2 business days, then we may not have received your e-mail. If you don't receive a reply, please check your e-mail account Spam or Junk folder. If you find our message in your Spam or Junk folder: click the "Not Spam" or "Not Junk" option to whitelist us for future e-mails.

- Phone: If your problem is urgent, you can try to call us. Note that we may not be able to answer the phone when you call, due to time zone differences, busy schedules, etc. If you can't reach us by phone when you call, please leave a voice message, and also send an e-mail with the details listed above.

Copyright (c) 2026 T-Cubed Systems, Inc. All rights reserved.
RelCalc (R) is a registered trademark of T-Cubed Systems, Inc.
Phone: 818-991-0057 Fax: 818-991-1281
E-mail: info@t-cubed.com Web: www.t-cubed.com