Buy bitcoins with credit card at Cex.io
Most exchanges don’t have the option to buy with CC, so for Cex being one, if on the only one that currently exists, the fees for buying Bitcion with credit card is very high, from what I’m seeing it’s around 7%. A quote from Cex website: “CEX.IO takes a 7% fee for the service which is charged from the amount of fiat currency.”
Also there is trading with USD, EUR, GBP, RUB for fiat, and BTC, BCH, GHS, BTG, ETH, DASH, ZEC, XRP, and XLM for crypto.