[justboxing]

I would suggest posting on 1 or more of the sub-reddits. In the past, I've seen exchanges ( GDAX, Bitstamp etc) respond to threads if it lands on the front page.

It looks like https://www.reddit.com/r/CoinBase/ is being moderated by Coinbase employees, so posting there may or may not work...

Try the others like https://www.reddit.com/r/CryptoMarkets/ and/or https://www.reddit.com/r/cryptocurrency/