German phrase
Entschuldigung, ich habe eine Frage zu ~.
Meaning
Excuse me, I have a question about ___
When to use it
Politely ask about something. Use it for forms, procedures, or other matters.
Example dialogue
Entschuldigung, ich habe eine Frage zu den Visumsunterlagen.
Excuse me, I have a question about the visa documents.
Welche Unterlagen fehlen Ihnen?
Which documents are missing?