Bedbug infested product made by Sheraton Textiles

Bought a 'luxury 'duvet inner made by Sheraton Textiles from Takealot.com. Holding the duvet inner up to the light I can see black shell casings in the inner fibre.Was bitten alive by tiny bedbugs when I put this on my clean linen on bed.Had to remove it in the night.This bug infested product has no labels and most likely a Chinese import.Takealot refused to refund or acknowledge there was a problem,so the onus falls on Sheraton Textiles now.I would like the product investigated and refunded asap.