Technically they didn't say they had been contacted about your product specifically. They may have just done a search for everything with the term Metallicar at WB's request, which is still overreaching but not particular to you. Fwiw, they don't have a pending trademark application or registration at the USPTO for "Metallicar" And back in the Olden Days like 2001 and 2002, companies like CafePress used to require a filing before stamping on usages. So frustrating that it seems they don't anymore.