No idea what the fraud is. but you can just have a cremation with no one present (quite popular now due to cost), so who knows what happens in those situations. they could be doing one mass cremation- squeeze a couple of bodies in one "coffin" and just giving a portion of the ashes to relatives. Does anyone at a crematorium look inside a sealed coffin?
I'm not all that fussed about what happens to me aprés death. They could put me in a skip for all I care. The fraud is not good though and ripping off mourning families is bad form. I'd be a darn site more angry if it was my daughter or son that was treated without respect though.