该怎么回复客户这个邮件呢？？？

dear ella, we dislike your attitude since we already opened 5 orders till the end of the year (with the last two orders total number of our orders is 7) and we never get a support from you; in our point of view it is not fit for the partnership.??anyway, we make the payment today and you will get the swift message in a couple of hours however we should talk about this 30% prepayment and definetely switch to 100% payment before the shipment since we never worked with prepayment with our other suppliers; you are the only one. what about the other orders (#133, 134, 135, 136)???did you start to prepare the materias? await for your kind reply. best regards ekin toprak 这个客户2月份下的一个订单，3月份完成生产，直到5月份才把尾款70%付清。这样的付款信誉，公司又不答应更改付款条件（之前：30%定金下单，70%后发货）。 客户已经把后半年的订单都发过来了，但以上邮件，这不知道该怎么回了！！！