I just got a fax (on a non fax number, but the computer received it) from them.
It advertises somebody selling wines in France, but with a different phone number, and their webpage is http://www.vltc.com/
I think the sender of the fax is just a spammer "telemarketer provider" who got paid to find them new customers.
Maybe sending a complaint to the vltc.com web page will be of some help?
Vale in Italy