French phrase
Si vous avez ~, contactez-moi.
Meaning
If you have ___, please contact me.
When to use it
A polite request to get in touch when needed. The tone is formal and considerate.
Example dialogue
Si vous avez des questions, contactez-moi.
If you have any questions, please contact me.
D'accord, merci, je vous contacterai si nécessaire.
All right, thanks, I will contact you if necessary.