I saw in their reddit AMA this info:
For winners of the lotteries when doing KYC there is a option if they want to participate in round 1 only or both rounds 1 and 2. Round 2 KYC will only start after round 1 of the sale.
Round 2 KYC starts on 21.04. So round 1 of the sale should be on 19 or 20? Why there is still no information about it?
The second round KYC is now open!KYC requires: a photo of the document with which you registered in the lottery and
two selfies.
NEX KYC for round 2 Q&Ahttps://www.reddit.com/r/NEO/comments/8e4b0s/nex_kyc_for_round_2_qa/