O2 Customer Service

Phone Number

0844 995 1303
UK Operation Hours
Monday-Friday: 8:00AM - 9:00PM
Saturday: 8:00AM - 8:00PM
Sunday: 8:00AM - 6:00PM

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Beginning of O2
Telefonica UK Limited, traded as O2 provides telecommunications services in the United Kingdom. The O2 established in 1985 as Cellnet by John Carrington in Slough, Berkshire, United Kingdom, which is a joint venture of BT Group and Securior. In 1999, it was branded as BT Cellnet after BT acquired Securior’s 40 percent share. In 2002, O2 Customer Service was introduced through mmO2 PLC. In 2005, Telefonica, a Spanish telecommunications company purchased O2 PLC for £18 billion, so O2 PLC turned to Telefonica Europe, but the brand O2 was retained. Ronan Dunne is the CEO and Chairman, having 21,580 employees as of 2013.



Personal and Business Products
If you are going to visit the official website of the O2 Customer Service, you will see the widest range of products offered, you may browse the shop to buy phones, upgrades, Sims, deals and insurance. You may also browse connectivity, apps and perks for reward, awards and other bonuses. With the O2 Business shops, you can get great deals on the latest devices and business applications. It does not matter if you have a small business under 10 people, medium business with more than 10 people or an enterprise with more than 2,000 people. Everything will be served by the O2 Customer Service.

O2 Customer Service UK

Want to talk to Customer Service?
Customers who would like to talk and get in touch with the O2 Customer Service may contact the telephone number provided for each team, dial 202 from your O2 mobile, 03448090202 from a landline and +443448090202 For Monthly Team; for the Pay & Go Team Customer Service, call 4445 from O2 mobile, 03448090222 from landline and +447860980202 from abroad; for Pay & Go Team Top-Up service, contact 4444 from O2 Mobile and 03456062277 from landline; for Business team, dial 8002 from mobile, 08009777337 from landline and +448448090200 from abroad; for Online Business Customer Service, connect with 08009777027 from a landline call.

Customer Service

Notices to Customers
Contacting the O2 Customer Service to pay for Monthly Team, the helpline is open for regular customers and Pay & Go Team Customer Service from Monday to Friday at 8am to 9pm, Saturday at 8am to 8pm and Sunday at 8am to 6pm; and for Platinum customers from Monday to Friday at 8am to 8pm, Saturday at 9am to 6pm and Sunday at 9am to 6pm. The Pay & Go team Top-Up Service is open 24/7. The Business Team is open from Monday to Friday at 8am to 8pm, Saturday and Sunday at 9am to 5pm. For more information about the O2 Customer Service, you may refer to their official website at www.o2.co.uk/.



O2 Live Chat

O2 have human team can help you with live chat technology, to start O2 live chat go to O2 Chatting page.

O2 Complaints

O2 Email: [email protected]
O2 Full Address: 35, Merrywalks Centre, Merry Walks Shopping Centre, Stroud, Gloucestershire GL5 1RR, United Kingdom
Contact: O2 Official

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2 comments on “O2 Customer Service

  1. TONY STEPHENS says:

    Before leaving for New Zealand(permanent move) I had my phone unlocked so that I could insert NZ sim and the phone would work in NZ
    After paying 20 pounds in a shop in Abergavenny and being assured that it had been checked and was unlocked, I find that it is asking for a SIM network unlock pin, this was not given to me by the shop and now I have a phone 5 months old that cannot be used
    Can you help.

  2. Susan milligan says:

    I have just purchase a contract phone from virgin and would like to keep my number on my pay as you go o2 phone can you please send me puk code or let me know how to get one thanks

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