导购口语:

This is quite unusual.please be assured that we will look into the matter.
这是很少见的。请您放心，我们一定会把这件事情查清楚。
We are trying to find the cause.could you wait a little longer,please?
我们正在查找原因，请您再等一会好吗？
We will look into it and back to you right away.
我们调查之后，会马上给您答复。

语句解析:

look into 基本意思是“朝…里面看”这里指的是“深入的检查；研究；调查”。

情景再现:

Would you send the computer in? We will have it checked first. Then we'll see what can I do for you.
你能否把电脑送来我们检查一下，然后我们再看怎么帮您。