Look for "Downloads" in the main menu - then select the folder "Free Joomla Extensions" and select the item you are interested in. At present, User Points can be downloaded with a free subscription. You'll find it in the "A Place for User Points" folder. Take out a Remository Observer or Remository Support and Upgrades subscription to be able to download free extensions.
Support Services
Please consider looking at the Remository documentation to see if it answers your question. Or search the question and answer section here. If you are unable to solve your problem that way, please raise a support ticket. Subscribers have priority support - usually a response within one working day. Tickets from others may receive limited attention. You can also raise a support ticket by emailing support@remository.com.