It's frustrating, I know.

It's possible the first employee didn't say anything because she knew you would be annoyed by her lack of English speaking skills. Maybe she felt it was better to say nothing at all.

I'd also like to say, however, that my son works in a place where most of the employees speak Spanish. Not only has he found ways to communicate, but I have gotten to know them and communicate, as well. With a little patience and cooperation, it's really not that hard. There are things a lot worse than this.