Submitting complaints and inquiries in the area of telecommunications

You can submit inquiries or complaints online, electronically or in writing. Please preferably use the online contact form.

To submit your inquiry or complaint online:

• On the Federal Network Agency's website, select the topic that matches your request.

• Complete the contact form in full:

  • Please enter your e-mail address. Information about your request will be sent to this e-mail address.
  • Attach any relevant documents, for example your letters with the providers. If possible, please summarize these in a PDF file.
  • Give us your consent to forward your request to the companies concerned so that we can clarify the facts of the case for a specific purpose.

• The Federal Network Agency will check whether there are any possibilities for intervention or support

• If so, the Federal Network Agency usually contacts the companies involved with the facts of the case.

• You will receive a reply from the Federal Network Agency to your inquiry or complaint, usually by e-mail or post.

If you wish to submit your inquiry or complaint by De-Mail, e-mail or post:

• Please use the PDF form provided for this purpose and complete it. Note: The additional explanations from the online contact form are not available here
• Send your request or complaint to the Federal Network Agency at the addresses provided.
• The further procedural steps are the same as for the online procedure.

• You are a customer of a telecommunications company and

• Your request concerns

  • regulations on customer protection under the Telecommunications Act (TKG) or
  • the basic provision of telecommunications services or
  • other European Union regulations on roaming, European international calls and text messages or net neutrality.

• in the event of a change of provider: your supply has been unintentionally interrupted or there is a risk of interruption for longer than one day.

Varies depending on the circumstances, for example:

• Contract and applicable General Terms and Conditions (GTC) of the provider
• Order confirmation
• Order for the relocation of your telecommunications connection
• Order for number porting
• Letter of termination or confirmation of termination
• Test and measurement logs of your broadband measurement
• disputed invoices and itemized bills

Further information on the required documents can be found in the contact forms.

The procedure is free of charge.

There is no deadline for submitting inquiries or complaints.

In the case of invoice queries, please note the complaint period of 8 weeks stated in your invoice. For reasons of proof, it is advisable to send complaints to the provider by registered mail.

In the event of a supply interruption due to a change of supplier, the Federal Network Agency will review your request within a short period of time, usually within 3 to 5 working days.

For other concerns, the processing time can be 2 to 6 weeks, depending on the subject area.

The Federal Network Agency assumes that you have already reported your concern to your telecommunications provider so that they can investigate the matter as quickly as possible.

• Telecommunications Act (TKG)
• Ordinance on the Promotion of Transparency in the Telecommunications Market (TKTransparenzV)
• EU Regulation on roaming on public mobile telephone networks (No. 531/2012 of June 13, 2012) in the current version
• Article 4 (1) to (3) of the EU Regulation on net neutrality and roaming (No. 2015/2120 of November 25, 2015) in the current version
• EU Regulation on net neutrality and roaming (No. 2015/2120 of November 25, 2015) in its current version

Contact form: Contact form for inquiries and complaints in the field of telecommunications

Online procedure possible: yes

Written form required: no

Personal appearance required: no

• Contact form: Telecommunications inquiries and complaints

27.04.2020