Royal Enfield — 500 bullet rear brake problem is very dangerous

Hi, i bought a new 500 bullet back in january 2017. I have had the same problem with the rear brake.
I told the re service center that i was not happy with the rear brake being very snatchy and making a horrible sound every time i braked. The dealer kept assuring me it was just brake dust in the drum. I accepted this rexcuse up until last week when the rear wheel locked up at speed, it was a miracle that i managed to keep the bike upright and stay on it.
On examining the brake myself after this had happened, i realised the rear brake cam bush was fixed permanantly to the brake plate with hardened paint. The rear brake cam bush should be able to move when the two nuts and bolts are slackened off to allow for centralisation of the brake shoes. I suspect a lot of bullets have left the factory with this problem and this needs to be addressed before someone has a nasty accident or gets killed. The swing arm and brake plate were bent and had to be replaced by a private motorcycle mechanic., from what i have been reading on a lot of forums regarding the problems with the new re's, i have now lost all confidence in re and its service centres. I would just like to add that i have owned three classic re bullets over the past 25 years without any problems and feel the quality of the product has gone downhill.
Steve, one seriously p*d. Off. Re owner.