When the contract with the employee, if the employee performs work on assigned to buy rewards. If the employee, according to the order, we were supposed to make of the promised rewards.
When the contract with the employee if the employee worked on the assignment to the success of the award. If employees do as ordered, we should also give prizes as promised.
When the contract with the staff that if employees work as assigned the task success to buy a prize. If an employee can do as requested, we should give prizes as promised.