How to keep the initiator name in the notification summary when it is going to multiple supervisors

Hello All,

We are following employee/supervisor hierarchy . User requirement is that whenever he is exceeding the approval limit and

User  A is creating PO with more than approval limit which associated with his approval assignment. The approval request notification is going to his supervisor B as per employee setup. When his supervisor B don't have enough approval limit , it is going to Supervisor C( B's supervisor).But User A don't want to Supervisor B name while mail notification mail goes from B to C. A is expecting his name when the mail goes from B to C(while B approves)..Note: Business wants to follow Hierarchy in the document type