遇到不愿给样品费的客户了~~~

今天，一个香港贸易公司的一个客户，向我的一款产品询价之后，就说想要一个样品！我跟他说是否可以先付样品费下单后返还给他！他不觉得不公平！（我交流的语气很硬，水平问题！） 客人：and we urgently want to see the sample of 1.item??no:xx12-4 can you send me ? please send me this sample with full accessories 我：ok,can you pay the sample charge at first,then if you order,we will return your sample charge 客人：my friend i pay the sf express courier charge why i pay the sample charge also ? if i get order, it is good for your factory right ? so, send the sample by sf express, i will pay the courier charge 我：i am sorry,this is rule of my company 客人：i am serious about business but if cannot check the quality how to confirm the order i pay the courier charge, so what is the problem ?? 我：please understand me! it is a rule of my company i will return the charge to you after your order 客人：if you are very strict, then i also will be strick this is not fair business that you do you must pay half and i pay half why you ask me to pay all cannot accept your way of working bye 我的语气不怎么委婉，要好好学习才行！如果你遇到这样的情况，怎么好呢？？