想請教下 而家申請緊NI 佢話要photocopy of Visa/ BRP 但用app申請冇,張CA5400D上面有個位填immigration share code 但寫"If you have settled or pre-settled status under the European Union Settlement Scheme, you also need to give us a share code.Share codes are only valid for 30 days. Please generate a new code for this application, write it on this form and post it straight away.To get a share code go to www.gov.uk/view-prove-immigration-status" 咁到底填唔填個CODE?唔填又比到咩資料佢 唔該晒咁多位先