Registered in Slovakia, Coinmama is an international crypto trading platform where you can buy BTC and Ethereum with your credit card. Fees are 5.5% not including credit/debit card fees. This will take the price of each transaction up to around 10% which is high. It is not yet possible to sell on Coinmama, but they are working on it. If you are starting out, Coinmama is a relatively simple to use site. More advanced users turn to this site when they have exceeded limits on other, less expensive sites.