我要就这件事向经理投诉。

I'm going to complain to the manager about this.

《牛津词典》

我向经理投诉，但问题丝毫没有得到解决。

I complained to the manager but I didn't get any satisfaction.

《牛津词典》

许多消费者采用的方法就是直接投诉到商店经理那里去，这是个简单又常见的方法。

A simple and common method used by many consumers is to complain directly to the store manager.

youdao