Law / How do I request a birth certificate from the USC in Poland for my mother who was born there? [6]

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How do I obtain a birth certificate for a relative born in Poland?

Hi everybody!
Just a quick question: How do I obtain a birth certificate for a relative born in Poland? My father was born in Poland in 1934 and I have contacted the town hall there several times for a couple of years now but they don't reply. Why is that? They don't even have the decency to give me a negative response. Is this common in Poland or is it just this municipality? I had absolutely no problems obtaining birth certificates for older relatives from the central archives. Seems that when a birth certificate is 100 years old it is transferred to the central archives and it is very easy to get hold of them, for a certain cost of course. I have only good experiences with them. But how should I go about with the town hall? I have written my emails in both English and German, but still no answer. Could it be that my father was born in a German area there? What should I do? Any suggestions? Thanks in advance!