If you need to extend your student visa, you will first need to request a new CAS to support your visa application. Our webpages provide helpful guidance on the requirements for requesting a new CAS and information you will need to support your application. Once you have read all the information and completed the CAS request form please send it to studentvisa@greenwich.ac.uk where we will aim to respond to your CAS request within 5 working days.
Once you have received your CAS, if you need any help with your student visa application, the following webpage contains useful information on the documents you require: https://www.gre.ac.uk/visa/during-your-studies/extending-your-tier-4-visa. You may also raise an enquiry to the International Student Advice Service who will be able to help you.