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Complaint Regarding Unused and Inactive Phone Number

  • January 31, 2026
  • 4 Antworten
  • 33 Aufrufe

Dear O2 Customer Service Team,

I am writing to formally submit a complaint regarding a secondary SIM card that was provided together with my main phone number at the start of my contract on 06 April 2024.

I would like to clearly state that this second SIM card has never been used since the beginning of the contract. The SIM card has never been activated and has not been used at any time.

I have only recently become aware that monthly charges have been applied to my account for this secondary SIM card, despite the fact that it has remained completely unused and inactive since the contract start date.

I kindly request the following:

  • A full review of all charges applied for this secondary SIM card since the start of the contract

  • A clear explanation as to why charges were applied to an unused and inactive SIM card

  • A refund or credit for all charges that were incorrectly billed

Please confirm receipt of this complaint in writing.

Thank you for your attention and cooperation.

edit o2_Gerrit 31.01.2026 moved to English O₂ Community: Mobile

4 Antworten

bs0
Legende
Forum|alt.badge.img+44
  • Legende
  • January 31, 2026

This is not customer services and this is not the place to submit a formal complaint. You can use the contact form for that but please remove the arbitrary bold text inserted by ChatGPT first.

However, why are you bringing this up almost 2 years later? SIM cards are activated after 21 days automatically. It doesn't matter whether or not you use it.


  • Autor
  • Besucher:in
  • January 31, 2026

I am aware that this is not the official customer service channel. I have also submitted my request via the official contact form. However, I chose to raise my complaint here as well.

Regarding your question as to why I am raising this issue now: I only recently became fully aware that ongoing charges were being applied to a secondary SIM card that I never intentionally used, and the SIM card was never used by me in practice.

Finally, the fact that I used ChatGPT to help structure my message is not relevant to the substance of my complaint. 


bs0
Legende
Forum|alt.badge.img+44
  • Legende
  • January 31, 2026

As already mentioned, it is irrelevant for the obligation to pay whether you use the SIM or not if it is part of your contract. The charges have presumably been invoiced every month so it is honestly somewhat difficult to understand how you can only now be aware of them.

If you have submitted your complaint via the contact form, you should receive a response from o2 in due course.

By the way, nobody said you can't use ChatGPT to help you draft a text, or that you can't use bold text for emphasis.


o2_Rebecca
  • Moderatorin
  • February 3, 2026

Hello ​@Minasa , first of all welcome to our community 🌼

It is very unfortunate that the second contract has only just been noticed.

Do you know where and how the second SIM contract has been signed/concluded? Did you recieve any kind of confirmation for the contract? 

Kind regards, Rebecca