Know Your Customer (KYC) includes documents necessary to prove a person’s identity on an online betting site. The KYC documents include proof of address which may be a recent utility bill or bank statement. Another form of KYC documentation is the proof of identity. This includes a national identity card, passport, or driver’s license. Showing a payment ID which may include a bank state, e-wallet verification, and a copy of the card used, is also very important.n