Dear starblinky,
Thank you for your review!
Let me kindly note that we provide three ways to buy/sell cryptocurrencies at CEX.IO with differet fee levels:
Instant Fill-or-Kill orders - get crypto just in a few clicks with 7% fee: https://cex.io/buysell
Limit order - you may create a buy/sell trade order, it will take some time to be completed, but the fee is 0.25% at the most: https://cex.io/trade
Market order - you may create an instant buy/sell order, in case you are willing to buy/sell the exact amount, the fee is also 0.25%: https://cex.io/trade#market
Thus, you may consider buying crypto with limit or market orders and pay only 0.25% fee for such trade operations.
Please feel free to contact our support team 24/7 in case of any questions or queries: https://support.cex.io/hc/en-us/requests/new