Expired Express Visa for 21 days

I'm from pakistan and my express Visa for 21 days was expired 3 mounths ago.
In my Visa i have company - sponsor.
When I Will go to pakistan Who should pay the fine?
Me or sponsor, Who brought me here?

Hi hw r u? I thnk as per my knowledge u cn check wth sanad people and also u cn check wth rop. y u stayed here more than ur date of expiry ? Could u say me reasn. i thnk per day is around 10 rials and u hve to pay.

I should pay or my sponsor, Who brought me here?

As per my knowledge he is supposed to pay ut. What is the reason fr ur stay extend?