1)
Why did he ask about Hester Panim?
1.
Radak: You said "v'Histarti Panai Mehem v'Hayah Le'echol" (Devarim 31:17). This curse was already fulfilled!
2.
Malbim: (a) Oversee me to see my affliction and hear my words. (b) Answer immediately and fulfill my request.