https://warwick.ac.uk/services/academicoffice/studentrecords/students/authorisedabsence/
Authorised Absence - For Student Visa holders
authorised absencefor studentvisaholders
https://intranet.birmingham.ac.uk/student/academic-support/registry/aa-ug.aspx
Authorised Absence for Undergraduate Students
Information about Authorised Absences for Undergraduate Students
authorised absenceundergraduatestudents