French phrase
Veuillez ne pas ~.
Meaning
Please do not ___.
When to use it
A polite request not to do something. Common in official notices, with a considerate but firm tone.
Example dialogue
Veuillez ne pas utiliser ce logo sans autorisation.
Please do not use this logo without permission.
D'accord, nous n'utiliserons le logo qu'avec l'autorisation.
All right, we will use the logo only with permission.