A very odd plant with colourful flat spines and tubercles characteristically disposed in vertical rib/like lines.

What is this plant?

The first specimens of this rare and unusual cactus was sold as an improbable but stricking hybrid between a Toumeya papyracantha and Echinocereus knippelianus.

However the plant is presumably a cross between a Mammillaria sp. with an unknown cactus or perhaps a monstrous form of Mammillaria. 

PS: Any additional information about the story and origin of this plant will be very appreciated...
 

Flowers

Description: Clustering matforming.
Stem: 4 to 5cm wide, up to 4 cm tall, flattened and soft.
Ribs: Vertical formed by a row of elongated tubercles.
Central spines: Bright orange and yellow, flexible with a bent tip, but not hooked.They are also flat and not pungent.
Radial spines: Glassy white, bristly.
Roots: Tuberose, very juicy and pink.
Flowers: Pink in a ring around the crown.

Origin:  Garden origin (Nursery produced cultivar)
 

Central spines bright orange and yellow, flexible with a bent tip, but not hooked. They are also flat a very uncommon feature for a Mammillaria. Radials bristly and white.

Roots are tuberose and pink!