It is not uncommon for there to be friction between tenants in shared houses. There are organisations within the university which can offer advice and support to students who are suffering from a variety of issues, especially those associated with private accommodation.
Royal Holloway University's Student Support Services offers a comprehensive range of services which students are more than welcome to use and visit. As well as advice on disputes between tenants, they can offer financial advice and support; faith support; counselling; medical support; amongst other services.
The Student's Union Student Advice & Support Centre is also on hand to offer advice and support to students, including for inter-tenant disputes.