University tax office
Should you need to contact the tax office the reference for the University is 083/G22.
The address of the tax office is:
HM Revenue and Customs
Pay as you Earn
PO Box 1970
Telephone 0845 300 0627
If you want to notify them of any change to your personal details then you can do this online at the HMRC Notification of a change in personal details page on their website.