在国外期刊网站上支付版面费，过了几天被催缴，明明填了信用卡卡号，难道没扣款？
仔细对比这次的订单，和之前一次成功的差别在
PAYMENT METHOD(S): Purchase Order
和
PAYMENT METHOD(S): Credit Card
请问两者有什么区别？担心网络诈骗，谢谢指教！
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修改:BoolNetwork FROM 61.50.124.*
FROM 61.50.124.*