Lns Billing generates bill for Funded amount or Requested Amount?

Hello,

I would like to find out whether Lns: Billing generates bills for the Funded Amount or Requested Amount?  As far as my testing it looks at the funded Amount.  Our user is saying they are creating loans with different requested amount and funded amount and it should create the bill with Requested Amount not Funded Amount upon the loan maturity date.  Most of the forgiven loans have Secondary funding status of 'PARTIALLY FUNDED' at the same time the disbursements are FULLY_FUNDED. Is that an intended functionality?..  Which also explains that it looks at funded amount. 

Thanks

Lalitha.