Translate "call us at" not work

Hello,
after upgrading to version 1.1 I noticed that some sentences are not translated. Let me explain.
Use the localization it_IT and I translated “call us at” with its translation into Italian. Everything is translated regularly except this portion.
I edited the file. Bit and I realized that referred to the line 22 instead of 20, despite my correction, still does not take the translation. What can I do? Thank you. Sorry for my languare translation.