Unfortunately, nothing we can do about it here on bitcointalk as KuCoin doesn't have an official thread here so we can't even try t press them via negative feedback. All this time I thought of KuCoin as a pretty reliable exchange, but it proves once again how dangerous is to keep so much money on centralized exchange, even if it has solid reputation.

By the way, have you tried getting some attention by posting this stuff under one of their tweets as  I know some cases where people managed to get an response. Even  it was another exchange, not KuCoin but at this point doesn't hurt trying that as well since you oney has been stucked for so long and honestly it doesn't look good.