Are there any fees for withdrawing coins from bets casino
https://www.bets.io/help/casino/payment-policy based on this page, they are not charging any withdrawal fees.
do we need to submit any documents for kyc verification?
Everything related to KYC is available in
KYC Policy. You may do a deeper read that page but I can say that KYC is something that will be asked if I read this below terms:
It is very important for operators of bets.io to know who their players are and for that reason, players who submit a withdrawal request can be requested at the sole discretion of Bet.io's security team if suspicious activity is considered to send documents proving their identity before the withdrawal request can be accepted.