Supporting *****ulant companies not supplying the products ordered

I ordered a Samsung screen digitizer through Bidorbuy's client, Zasstra. This product never arrived and after numerous letters and phone calls the matter has not been resolved yet. Their supervisor attempted to get Zasstra to contact me and their response - They don't have my banking details which, I sent the proof to Bidorbuy 7 times. It is as if they just ignore my mails and every time the whole process starts again with their inefficient personnel. It is now 2 months later and the only response I got was... Please attempt to resolve the matter with Zasstra, they don't have your banking details. And that response was sent as reply on the mail I sent with the 7th sending of my details.