Nigerian Central Bank to Freeze User Accounts on Bybit, KuCoin, OKX & Binance, CBN Denies The Central Bank of Nigeria has directed banks to identify and restrict accounts transacting with unlicensed crypto exchanges, placing them on Post No Debit (PND) for six months. Bybit, KuCoin, OKX, and Binance are among the exchanges listed as not licensed in Nigeria.