Craze Deals bad afterservice

Wishing I had read the reviews here before purchasing anything from Craze Deals. I ordered 5 diffusers (for myself and some friends). The parcel arrived very badly wrapped, and then on inspection, one of the usb cables was missing. Making it impossible to use on of the diffusers. I contacted them via the telephone and via email on several occassions. I've had no reply to my several emails, but when phoning them, was assured they would send the courier to collect and refund me. It is over a month now, and I'm still waiting for a response. My order number was Order 19516.