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.
Kucoin don't have an official representative here on the forum so there is no need to share the ticked number.
They do have it
[ANN] [EXCHANGE] KuCoin Exchange @OP you can posted this accusations on their thread to make them aware, the representative also active today. I've remembered there's an accusations with similar problem and they let the customer withdraw without submitting KYC.