英國遊戲規則係 只要申請時舊visa有效 申請期間都可以跟據本身visa嘅條件生活
https://www.nrpfnetwork.org.uk/information-and-resources/rights-and-entitlements/immigration-status-and-entitlements/section-3c-leave#:~:text=Section%203C%20of%20the%20Immigration,as%20'section%203C%20leave'.