Category from Tier 4 student to PSW Tier 1 (in country through special delivery) Date of expiry of current visa: 15 Jan 2011 Date application posted: 4 Jan 2011 Acknowledgment dated: 8 Jan 2011, received 15 Jan 2011 Biometric invitation letter dated 21 Jan 2011, received 24 Jan 2011 Biometric detail...