Netflix - unwilling to fix security issues and unwilling to help

I recently deleted my Netflix account (not wanting to be billed for longer). However, I kept on being billed. When I called them the first person to pick up hung up after a while and the second answer was by a robot. The third person finally removed my card but refused to reverse all ********** charges. Only the most recent one was reversed. I am not the first person I know of to have their account compromised however, Netflix does not seem to be bothered to improve this error. They are effectively *****ing your money due to their poor security and unwillingness to help.