僱傭合約列明離職要one month notice,無寫payment in lieu 這句，僱員是否都可以代通知金來代替一個月通知？僱主是否有權不接納代通知金？ contract 內有一句'employee resign from xxx should give one month notice or employee can leave earlier if agree by xxx'如僱員付通知金是否仍屬於leave earlier?是否需僱主同意才能離職？