Basically they charged a 5% transaction fee for all payments made via credit cards and crypto currencies accepted as a mode of payment (e.g., Ether, Bitcoin).But Also they have an another Payments options made using GO Tokens will NOT be charged any fees on our platform. This is to protect the interest of all our token holders moving forward, So basically if you wants to save that 5 % of transaction fee then you have to buy their go tokens.