UCAS is not involved in student loans or any other options to finance students while they study - these are managed by other organisations. Go to the student finance page to find more information and the contact details of these organisations.
Although it is the universities' responsibility to set course fees, Course Finder does provide financial and course fee information for most courses. Click on the course title and select 'Tuition fees' to access this information. As this information is provided to UCAS by universities and colleges, if there is no financial information on Course Finder or you require further information, you should contact them direct.