Route Expense approval to a job level instead of supervisor

Summary:

I am trying to setup BPM approvals rules for the approval to go to a appropriate job level manager based on amount limits, but the approval request goes to manager of the 8 job level approver.

Use Case:

Employee "A" has Manager tagged as "B" who is not of Managerial job level 8.

Employee "A" when submits expense report it should go to "C" who is of Managerial Job Level 8.

What should be the approval if and then conditions?

Content (please ensure you mask any confidential information):

I am trying to setup BPM approvals rules for the approval to go to a appropriate job level manager based on amount limits, but the approval request goes to manager of the 8 job level approver.