Here you can see the Levi Status
If the status is تم سداد that means payment already made
If the status is منتهي الصلاحية that means number expired because of non payment
Now different firms having different rates of levi, some firms only required to pay 100 SAR per worker, while others 2400 SAR. You can check your Levi amount by using your levi number in Bank ATM or Online.