Extending Your Student Route (previously Tier 4) Visa
Before you extend your Student Route (previously Tier 4) visa you will need a CAS number to support your Student Route (previously Tier 4) visa application form. You must request your CAS before you start to complete your visa application form as you will need to include key information as stated on your CAS statement, such as the unique CAS number that confirms Swansea University will remain your Student Route (previously Tier 4) sponsor.
Students cannot extend their Student Route (previously Tier 4) visa without having a valid CAS number. In addition to the CAS, students must also provide the UKVI with evidence that they hold sufficient funds to cover the course fees and monthly living costs for up to one year. This figure is set by the UKVI. For further advice and guidance on maintenance fees, please see Finances for student Visa