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At registration, it is very important that you take special attention about the correctness of your name, age or nationality. If you can not read, try to find someone who can read and speaks your language.
Why? Because if later in your asylum procedure you realize that your name, age or nationality was written down wrongly at registration and you want to change it afterwards, the German immigration authorities may have the impression that you were trying to hide your real identity (for example if at a later time you have to show an official document from your home country).
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How to correct name, age or nationality: When you have interviews with the immigration authorities, tell them about the mistakes – even if you have no guarantee for change (usually you have to give proofs through original documents).