样品快递费问题

前两天发信的印度客户，到我们报价之后要样品。邮件往来如下(客套话省略):

August 28 2013 12:53 PM客户

We cannot proceed further without receiving samples for evaluation. We do not he a courier number. The samples could be shipped to the following address:

28 August 2013 13:27 AM我的回复：

As per company's policy, samples will be offered free of charge, but the shipping cost is at client's account. When you place order, we will return this shipping cost accordingly.

We plan to send 6mm and 12mm board for your checking. If it's fine for you, the door-to-door cost is US$39 in total by Dpex with 4 working days delivery time. Please confirm.

August 28, 2013 15:53客户回复：

Under such circumstances we shall explore other enue.

Regards

因为我的产品价值比较低，小样品都是免费的，最近发的几个客户都由于不愿意付样品快递费的问题无法继续进行，有时感觉连快递费都不愿意付的客户估计也没多大诚意配合，但是就这样放弃掉又觉得有点可惜。这种情况大家都怎么？