The answer to this is, stop relying on tweets and emails to get YouTube's attention. They just trigger a canned response from an autoresponder bot, then go straight into the bit bucket.
Send them a physical letter. Properly formatted, printed on 8.5x11" (or A4 if you're in metric-land) paper, and sent via certified first-class mail in a same-sized manila envelope so that it's mailed flat, not folded. Use printed labels for the mailing and return addresses, so it looks official. And most importantly, make sure it you send it "signature/delivery confirmation required", or go all the way with a physical Return Receipt. (Which is, for those not familiar with that service, a special postcard attached to the outside of the envelope which will be mailed back to you via the USPS with the recipient's signature and date of delivery, as physical proof that someone at the other end signed for the letter and took possession of it.)
The answer to this is, stop relying on tweets and emails to get YouTube's attention. They just trigger a canned response from an autoresponder bot, then go straight into the bit bucket.
Send them a physical letter. Properly formatted, printed on 8.5x11" (or A4 if you're in metric-land) paper, and sent via certified first-class mail in a same-sized manila envelope so that it's mailed flat, not folded. Use printed labels for the mailing and return addresses, so it looks official. And most importantly, make sure it you send it "signature/delivery confirmation required", or go all the way with a physical Return Receipt. (Which is, for those not familiar with that service, a special postcard attached to the outside of the envelope which will be mailed back to you via the USPS with the recipient's signature and date of delivery, as physical proof that someone at the other end signed for the letter and took possession of it.)
That will get someone's attention.