I'm from Romania.
That's the final notice ( deadline Oct 1st ). KCC is legit from what I see. I'm expecting some notice from Kraken and also from Bittrex ( only for Bittrex US users).
I wouldn't be surprised at all to get something from Binance also..( but there are two separate entities, US and Global).
Salutare!
What do you mean deadline 1 Oct?