I have also a problem with him(and i'm not the first). It's not a serious man, and he is also very famous in France, and not for his good customer service.
I have buy and pay a set of Avo springs the 6th of October and still not received.
He said to me the 17/11 (after 3 mails without reponse) a history that he had a problem with TNT and that he send me another kit, but 20 days after that, i haven't received nothing.