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Contact O2 customer service - that's how it works

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Contact O2 customer service - that's how it works

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Contact O2 customer service by phone
Solve problem online and other contact options

Do you need to contact O2 because you have a problem or a question? We have listed all possible ways to O2 customer service for you..

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There are various reasons to contact the free O2 customer service. If you have any problems or questions, you can either call customer service directly or look for suggested solutions online in the O2 service area. We'll show you the easiest way to contact O2:

Contact O2 customer service by phone

Many customers still prefer the classic way of contacting them by phone . Here O2 differentiates between different customer categories.

O2 customer hotline for contract customers

  • From the O2 network: 55 22 2
  • From the landline: 089 - 78 79 79 40 0
  • From other cellular networks: 0176 - 88 85 52 22 (20 cents per call)
  • From abroad: 0049 176 - 88 85 52 22 (costs depending on the tariff)

O2 customer hotline for prepaid customers

  • From the O2 network: 55 28 2
  • From a landline: 01804 - 05 52 82
  • From other cellular networks: 0176 - 88 85 52 52 (20 cents per call)
  • From abroad: 0049 176 - 88 85 52 82 (costs depending on the tariff)

O2 customer hotline: special hotlines

  • Contract termination: 0800 - 10 15 849
  • Activation of the SIM card: 0800 - 66 999 66
  • Fault hotline: 0800 - 52 51 378
  • Premium customers: 0179 - 4444 333

Important: Calling the customer hotline is free for premium customers. In addition, you do not have to pay anything for questions about orders, contract termination, SIM card activation or the fault hotline..

Solve problem online and other contact options

  • If you want to search for a solution online, click here: www.o2online.de/kontakt/ . If you are already an O2 customer, you can log in at the top right under " Login ".
  • There you will find an overview of various topics that you can select depending on the problem. If you have clicked on a topic, you will be shown further more precise sub-topics, for which you will be offered suggested solutions with just one click .
  • If there is no suitable suggestion, you will find further options below on how you can be helped with your problem.
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You can also search for suggested solutions online at O2.
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