I’m sure what the problem is: you don’t have the full admin rights for your WordPress installation. Can you please check if you can see this link:
WP admin -> Appearance -> Editor?
If not, then you don’t have the full admin rights for your website, and that’s why you don’t see the theme options. Many hosting provider offers a modified WordPress version for their “one-click WordPress installation”. We recommend to use only the original WordPress from wordpress.org.