German phrase
Im Problemfall kontaktieren Sie ~.
Meaning
If there is a problem, contact ___
When to use it
It tells you whom to contact. It is a polite, formal instruction for handling problems.
Example dialogue
Die Waschmaschine macht komische Geräusche. Können Sie mir sagen, was ich tun soll?
The washing machine is making strange noises. Could you tell me what I should do?
Im Problemfall kontaktieren Sie bitte unseren Kundendienst.
If there is a problem, please contact our customer service.