The part you ordered is in stock./out of stock.

　　你订购的产品目前有货。/你订购的产品目前缺货。

　　Can you recommend an alternative？

　　你能推荐别的选择吗？

　　Can I suggest a similar model？

　　我可以建议类似的型号吗？

　　The alternative model is not what I wanted， so I'll have to cancel the order.

　　另外的型号不是我需要的，因此我不得不取消订单。

　　What does this mean for the consumer？

　　这对消费者意味着什么？

　　It's not company policy to give credit without previous arrangement.

　　不经事先安排就发放信贷不是本公司的策略。

　　Could you give us another month to settle an account？

　　你能再宽限我一个月结帐吗？

　　If we don't receive payment immediately， we will start proceedings¹ against you.

　　如果我们不能立即收到付款，我们将对你动用法律程序。

　　proceed against sb： （law 律） take legal action against sb； start a lawsuit² against sb 起诉某人； 对某人提起诉讼。

　　I'm a very good customer.

　　我是一个声誉良好的客户。

　　All I'm asking for is a small discount.

　　我所要求的是很小的折扣。

　　It's too big./It’s not big enough.

　　太大了。/不够大。

　　The problem is the zip isn't working.

　　问题是拉链坏了。

　　I wanted to discuss my company's outstanding account.

　　我想谈一下我公司丰厚的利润。

　　Payment is now four days overdue³.

　　付款期已超过四天了。

　　overdue 常作表语] not paid， completed， arrived， etc by the due or expected time （到期或到时）未付款， 未完成， 未到达：

　　*These bills are overdue， ie should have been paid before now. 这些帐单已逾期未付。

　　*The baby is two weeks overdue， ie still not born two weeks after the expected date of birth.

　　那胎儿已超过预产期两个星期了。

　　* The train is overdue， ie late. 火车误点了。

　　We have some cash flow problems at the moment.

　　目前，我们有一些现金流通问题。