how to say “contact us” in Hebrew
צְרוּ קֶשֶׁר
Unlike English, Hebrew doesn’t have one single word to mean to contact. Rather, we use an expression that means to create connection… which is essentially what contacting a person accomplishes.
For example:
יָצַרְתִּי אִתָּם קֶשֶׁר.
I contacted them.
and, when speaking in the plural:
צְרוּ קֶשֶׁר!
Contact us! (literally, Make contact!)
or just:
צְרוּ עִמָּנוּ קֶשֶׁר!
Contact us! (literally, Make contact with us!)
You’re also likely to find on Israeli websites !צוֹר קֶשֶׁר 
listen and repeat in the masculine singular.
listen and repeat in the masculine singular.