I'd be thankful if anyone could goive me the title for this job in an educational centre. This person 'processes registration requests, schedules classes and maintains class lists, enforces the rules for entering or leaving classes, and keeps a permanent record of grades and marks.' In AmE, the term Registrar must be used for this position. I hope I can have the title in BrE, please.
There's no single job title for this post in the UK.
You might see
Office Manager/Office Administrator/Administrative Superintendent/Student Liaison Co-ordinator etc.