Is there nothing you can do? Get in touch with said companies? Anything? I'm so sorry. YouTube is really acting poorly to its creators for the past few years. They are metaphorically shooting themselves in the foot. Twitch will take over soon at this rate, or NikoNiko.
If you start a new channel on YouTube or Twitch, let me know. I'll sub you just to spite them. That's one of the reasons I'm only doing some YouTubing while my work is being devoted away from them.