You would only be able to take a Level 7 course in a university. Usually, the highest level completed and required for work in the UK is a Level 6 and the most common is the Diploma in Public Service Interpreting (DPSI). However, this level is only suitable for experienced, professional interpreters. if you wish to start an interpreting career the best place to start is by completing the Level 3 Certificate in Community Interpreting, such as the one provided by Learn Q.