Use your welcome email. It provides a link to a site containing tutorials. Tutorials are not mentioned
Could you please post the link that is provided so we can take a look at what might be the issue.
If you head to Todoist.com, in the top right corner there is a ? that will show you all information that you would need. You can also head to our YouTube page to see video tutorials. http://www.youtube.com/user/IstProductivity
Here is the detailed blog post that may also be helpful for you: https://blog.todoist.com/2014/06/10/a-comprehensive-guide-to-using-todoist/