Regarding your concern, I would like to inform you about the Cash payment workflow:
Step 1: Employer choose the appropriate mJob for him and checkout
Step 2: At Checkout step he can choose the Cash option
Step 3: After order is received it will change the status to Pending
Step 4: Employer will then receive the email notification and transfer money directly to admin’s bank account
Step 5: After received money, Admin can go to Engine Settings > Orders to approve (or decline) this payment.
In the front-end, the status will change to Active
Hope this could clarify your uncertainty.