Contact STC

We love to talk to our customers.

If you have any questions or any concerns, please do not hesitate to contact us.

Please shoot us a line for any reason and we will be happy to do our best to meet your needs or help you get the most from our site. You can contact us either by our online form on this page, or via phone.

Phone Numbers:

  • US-based customers, please call (512)-428-5437
  • International customers, please call 1-(512)-428-5437

Customer Service Hours:

  • Monday through Friday, 9am-10pm EST
  • Saturday, 10am-6pm EST
  • Sunday, 12pm-8pm EST

If we are not there, feel free to leave a message and we will get back to you, or drop us a line using the form on this page. We try very hard to respond to inquiries as quickly as possible!


    24/7 Email Team