If you need to get in touch with our support staff directly, please use the contact form on our website (https://www.simplify3d.com/contact/). We will be able to assist you much faster using this method. All licensing related questions should be submitted using this contact form. Otherwise, you are welcome to post your question on this forum if you would rather hear from the larger community.
If you are a new user, please be sure to read the Quick Start Guide included with the software (which you can find at any time by going to Help > Quick Start Guide from within the application). Many common questions are answered in this document. We also offer many other resources which you can find on our support page (http://www.simplify3d.com/support/) including video tutorials and a detailed print quality troubleshooting guide.
Finally, we are constantly updating the software to add new features and improvements over the previous revisions. You can go to Help > Check for Updates from within the application to make sure you are using the latest version of the program.