It is possible to remove the "Powered By Freestyle Support Portal" line from the bottom of your support portal.
Goto you Joomla backend. Under 'Components' -> 'Freestyle Support Portal' -> 'Settings'.
Under the 'General Settings' tab, check the box "Hide 'Powered by Freestyle Support Portal' text". Save your settings and the banner will be removed.
Support Portal, FAQs Lite v1.x, Testimonials