Customer Service Contact Details of German Providers

If you encounter any problems with your German sim card, you should reach out to the customer service of your respective provider. A few things can only be corrected through the phone and the customer service personnel is also happy to answer any questions you might have about using your sim card in Germany. Usually, all employees speak English as well.

The fastest way to contact customer service is through the support hotlines. However, be aware that you could encounter long wait times (up to 30 minutes) or automatic machine menus in German. If you choose to call one of the hotlines, it is advisable to ask a German-speaking friend to help you. If you choose to write an email, you might only receive a reply after a few weeks.

Note that you need to be a current customer to benefit from this service. If you are looking to order a sim card, please read our overview.

Telekom Customer Service

Telekom Help Website for all contracts: Telekom General Support Website

Hotline for SIM card contracts (free of charge within Germany): 0800 33 02202

Hotline for landline contracts (free of charge within Germany): 0800 33 01080

Hotline (from the Telekom network): 2202

Hotline (from a foreign country): +49 171 252 2202

E-Mail Contact: kundenservice.mobilfunk@telekom.de-mail.de

Vodafone Customer Service

EU-Roaming Hotline: 12220 (from Germany)  |  +49 172 12220 (from within EU)

For Vodafone Prepaid customers (CallYa): 

Hotline: +49 172 229 0 229

Top Up Credit in a foreign country: 22922

E-Mail Contact: Use contact form (only in German)

For Vodafone Postpaid customers:

Hotline (free of charge within Germany): 0800 172 1212

Hotline (from the Vodafone network): 1212

Hotline (from a foreign country): +49 172 12 172 12

Fax: 02102 98 65 75

E-Mail Contact: Use contact form (only in German)

WhatsApp Vodafone Support: Click here (+49 172 1217212)

O2 Customer Service

General Hotline: +49 89 – 787 979 400 (Mon-Fri: 8am – 8pm, Sat: 10am – 6pm)

General Hotline (from a foreign country): +49 176 – 88 85 52 22 (Mon-Fri: 8am – 8pm, Sat: 10am – 6pm)

O2 Prepaid Hotline: +49 176 – 88 85 52 82 (Mon-Fri: 7am – 8pm, Sat: 10am – 6pm)

❗️English-speaking Hotline: +49 (0) 89 66 66 30081 (Mon-Fri: 10am – 6pm)

Hotline (from the O2 network): 1414

Hotline (from the O2 network): 55222 (0.20€ per call)

E-Mail Contact: No E-Mail Contact available, only Chat-Support (Mon-Fri: 8am – 8pm, Sat: 10am – 6pm)

Fax (for contract cancellation): 01805 571766 

WhatsApp O2 Support: Click here (+49 176 88844444)

Congstar Customer Service

Hotline: 0180 6324444 (Mo-Sa: 8am – 10pm, Sun: 9am – 6pm) (0.20€ per call from landline, 0.60€ per call from mobile)

E-Mail Contact: Use contact form (only in German)

Chat-Support: Start Chat-Support (Mo-Sun: 8am – 10pm)

ALDI TALK Customer Service

Hotline: +49 (177) 177 1157 (Mon – Fr from 7 a.m. to 11 p.m., Sa – Su 10 a.m to 6 p.m.)

From Germany: Please dial 1157 from your ALDI TALK mobile phone.

E-Mail Contact: Use contact form

Lebara Customer Service

Hotline: +49 (1806) 532 272 (Mon – Sun from 9 a.m. to 9 p.m.) (0.20€ per call from landline, 0.60€ per call from mobile)

From Germany: Please dial 5588 from your Lebara mobile phone. (0.15€ per call).

E-Mail Contact: Use contact form

Chat-Support: Start Chat-Support

Blau Customer Service

Hotline for postpaid customers: +49 (0) 177 177 1160 (Mon – Fr from 8 a.m. to 8 p.m., Saturday: 10 a.m. to 4 p.m.)

Hotline for prepaid customers: +49 (0) 177 177 1159 (Mon – Fr from 8 a.m. to 8 p.m., Saturday: 10 a.m. to 4 p.m.)

E-Mail Contact: Use contact form

Chat-Support: Start Chat-Support (Mon – Fr from 8 a.m. to 8 p.m., Saturday: 10 a.m. to 4 p.m.)