Internet expenses

Hey guys,

We are a bank with approx 500 branches

Accounting Structure:

Segment one: Company

Segment two: Branch/BSV

Segment 3: Natural Account

Segment 4: CC

Segment 5: Product

In internet expenses we want to settle liability of branch employee expenses through one payment Bank account but problem we are facing is in settlement account, oracle allow us to mention one set off account combination i.e. one BSV in account combination but we want that when the relevant branch runs the payment process through that settlement bank account relevant branch bsv got hit and liability got settled.

In short please advice how to manage Internet expenses of 500 branches with one bank account and its accounting legs are completed.