Re:I Fell Victim to a $1,500 Used Camera Lens Scam on Amazon
by triangleman on Monday August 14, 2017 @09:26PM
(#15014601)
I believe the feature OP was looking for was to filter out 3rd party sellers regardless of who fulfills the order.
They have a filter "Free Shipping by Amazon" under "Eligible for Free Shipping". It should filter out most if not all items not serviced by Amazon.