I hate to state the obvious here but as it appears you brought an Art-Tech model from a non-genuine Art-Tech distributer then you dont have a hope in hell's chance for getting anything direct from Art-Tech.
Art-Tech have taken the time to respond to your question it seems and explain that the shop you brought the item from isn't one of their approved distributers. Also they have made an effort to contact the supplier themselves, more likely to ask why they are selling Art-Tech products without Art-Techs consent!
I am guessing you perhaps brought this model from an Ebay store as it was advertised cheaper than a genuine Art-Tech dealer? Or online somewhere else?
Your only option and as you used PayPal you should already perhaps know about this, is to file a dispute with PayPal over faulty or defective goods and hope to get your money back.
If not all of it then most of it depending on the PayPal insurance cover held by the seller.
I am curious though as to why you stuck this post in the Century forum though as it's not a Century product and I doubt Art-Tech visit here I'm sorry to say.
Team Robbe SchluterUK