How FC financing works for BIG, page-57

That question has stumped me also...but as Ryzie pointed out in his great post if a customer agrees to a contract with FCC they get a $12,000 line of credit.
From here, just what package they choose doesn't actually change BIG's revenue...they are receiving $9,120 (12k minus FCC 24%).
So even if a customer chooses say the silver package at a total yearly cost of $795, BIG's takes home $9,120!!
This is a win/win for all concerned???
FCC get their cut, BIG take home over 9k for a package worth under 1k and the customer gets their video package and a free line of credit with whatever is leftover to use as they see fit.

Am I reading this correctly?

If so, this is a genius setup for BIG...I have heard many being critical of the 24% fee that FCC take.  But from the above example BIG are receiving an extra $8,325 purely due to the customer wanting a free line of credit.

If correct, the 24% commission fee doesn't seem so steep!