问：XX项目为什么不能通过信用卡进行支付。
答：信用卡支付报名费的上限金额是500元，报名费在500元以上的比赛建议选手使用储蓄卡绑定的账号支付。
Q: Why cannot the XX project pay by credit card?
A: The credit card to pay the application fee limit is 500 yuan, the registration fee of more than 500 yuan in the event, we recommended the runners to use the savings card bound account to pay.