As far as I'm aware you have to manually put your website and enable a bunch of stuff on your website in order to get your website bridged, it's not automated at all. I'm extremely skeptical that brid.gy would do this on their own. Is it possible some other person impersonated you? Did you contact them about it already? They've always been happy to delete profiles on request by the owner/s of the original site, no questions asked (other than making sure you're the owner I guess), even if the bridge was started willingly at first.