Good news for the Vietnamese! On November 22, KuCoin launched Vietnam Dong (VND) OTC market with BTC and USDT pairs. And yesterday they started promotion and they will refund 40% of trading fees for OTC trades with VDT fiat currency. Available only for KYC verified users from Vietnam!
More:
https://www.kucoin.com/news/en-trading-fees-refund-campaign