Looking at their site it looks like a rebrand/white label only. P.s Filio is a mortgage manger ( i use to deal with them many many years ago when they were called national finance club) and im sure they have more than one lender on their books...
ALso ING only allows white label no DUA as such- so not possible to have their own credit guide.
Only ABL and Perpetual that im aware of will allow some sort of DUA and minimal credit override.