申請tier 4 (general) 問題

請問申請tier4(general)要upload d咩document 上vfs 果個sponsor evidence 要upload d咩？financial proof 可以upload e statement 嗎？去過恆生問，冇得蓋印。啊仔啱啱先收到cas，book 左7/9。唔知要等幾耐，有d擔心。thx a lot