I recommend contacting a lawyer who specializes in domains: Stevan Lieberman (www.aplegal.com) John Berryhill (johnberryhill.com) Ari Golderberger (esqwire.com)

Those are 3 of the best. Your options are contact NameCheap and see what they can do. Also filing a UDRP works sometimes. But see what else a lawyer who specializes in this can do.