Customer advice
Mobile services have changed the way we communicate. We all keep in touch with each other like never before. As a telecommunications provider, we need to make sure we provide customers with a service they can genuinely trust.
We put our customers first and we try to understand their needs and opinions and to respond to them.
Contacting us
Comprehensive online support and the contact details for our customer service teams are available on the websites of our local operating businesses.
When you call, have your O2 mobile number ready, enter it when prompted and we will connect you to the most appropriate person to answer your query.
For more information:
Telefónica O2 UK
202 for pay-monthly customers (08702 410 202 from a landline) or 4445 for pay and go customers (08705 678 678 from a landline).
- Report a lost or stolen phone through your customer care number.
- Activate age verification 61018.
- Activate parental controls 61818.
- Report unwanted spam – forward the message to 7726.
- End a premium-rate subscription by texting STOP + keyword.
- Change your privacy settings 1300.
- Mobile phone mast queries 01753 564 306 or networkconsultation@o2.com. [For queries relating to base-station consultation. For coverage issues, please contact our Customer Care teams]
Telefónica O2 Germany GmbH & Co OHG
Post-paid customers - 00 49 (0) 1805 - 62 43 57 from a landline and 00 49 (0) 179 55 222 from a mobile.
Telefónica O2 Ireland
1909 for pay-monthly customers or 1747 for Speak-easy (pre-pay) customers (1850 601 747 from a landline).
- Report a lost or stolen phone through your customer care number.
- Activate dual access for parents through your customer care number.
- Report unwanted spam – forward the message to 50455.
- End a premium-rate subscription by texting STOP.
- Report inappropriate premium-rate text messages to Regtel 1850 741 741.
Telefónica O2 Czech Republic
Call 00 420 800 123 456 from a landline or *11 from your mobile phone.
- If you wish to find out more about products and services, call 00 420 800 02 02 02.
- To find out more about Telefonica O2 Czech Republic, visit our website.
- For information on how to write to us, visit our website or contact us at:
Za Brumlovkou 266/2
Praha 4 – Michle
PSC 140 22
The Czech Republic
