French phrase
Je vous recontacte d'ici ~.
Meaning
I'll get back to you by ___.
When to use it
A polite promise to make contact again by a deadline. It suits phone or email follow-ups and leaves the exact time unspecified.
Example dialogue
Je vous recontacte d'ici la fin de la journée.
I'll get back to you by the end of the day.
Très bien, merci.
Very well, thank you.