She did not know the nature or the number of the complaints.

The problem is more serious than some of the complaints.

What action do you take to bring about changes as a result of complaints?

Some are even working off their own list of complaints.

"We have not had any significant number of complaints about them."

Finally, the 311 system has led to an increase in the number of complaints.

The number of complaints was up from 897 the year before.

The other two followed him without a word of complaint.

Yet I would judge she made no word of complaint.

But no one had ever heard a word of complaint from him.