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Blau.de: contact the customer service Hotline

  • Oct 09, 2025
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Do you have a question about your SIM card from Blau.de you can contact the customer service via Hotline. What other possibilities are there, we will show you in this article.

Blau.de: contact details and Hotline

  • You use the All-Net-Flat of Blau.de you can reach the Hotline at the telephone number 0177 177 1160. You can use the 9-Cent rate, call instead 0177 177 1159.
  • The Hotline is open Monday to Friday between 8.00 and 20.00. From the German fixed network, the call costs a maximum of 20 cents per Minute from the mobile network to a maximum of 60 cents per Minute.
  • Alternatively, you can reach the Support via the contact form Blau.de. Here you will find the most important forms for Download as well as a FAQ section.
  • Tips: to avoid annoying Hotline waiting loop
Contact with the Blau.de customer service

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