O2

0843 557 3690

Contact O2 on 0843 557 3690 to reach the second-largest mobile network operator in the UK, with 25 million subscribers. Owned by the Spanish company Telefónica since 2006, Telefónica UK Limited still trades under the O2 brand. You can easily connect with O2 whether you are calling as a customer, potential employee, or for business purposes.

O2 Contact Numbers

Use this table to locate the helpline number you need and its opening hours. Most O2 helplines are open seven days a week.

Department
Phone Number
Opening Times
Sales
0843 557 3690
(Mon-Fri) 8am – 9pm
(Sat-Sun) 9am – 5pm
Pay As You Go Team
0843 557 4967
(Mon-Fri) 8am – 9pm
(Sat) 8am – 8pm
(Sun) 8am – 6pm
Pay Monthly Team
0843 557 4524
(Mon-Fri) 8am – 9pm
(Sat) 8am – 8pm
(Sun) 8am – 6pm
O2 Smart Home
0843 557 3365
(Mon-Sat) 8am – 7pm
(Sun) Closed
Business
0843 557 3647
(Mon-Fri) 8am – 8pm
(Sat) 9am – 5pm
(Sun) 9am – 5pm
Affiliates
0843 557 3744
(Mon-Fri) 8am – 9pm
(Sat-Sun) 9am – 5pm
The Blue
0844 453 0127
(Mon-Fri) 24/7
(Sat-Sun) 24/7
Careers
0844 826 8016
(Mon-Fri) 8am – 9pm
(Sat-Sun) 9am – 5pm

Sales

Contact O2 on the primary helpline 0843 557 3690 to reach the Sales department. Got a general question about an O2 product or service? These are the people to answer it for you. If you need further help, they can connect you to the relevant department. Had an unfortunately negative experience and want to complain? O2 will do its best to make it right and keep you as a valued customer. You can call about anything from devices to tariffs, O2 Drive to insurance on handsets and travel, or the O2 Priority to O2 Learn apps.

Pay As You Go Team

Even the humble Pay As You Go SIM has a dedicated team helpline, which you can call on 0843 557 4967. Whether you Pay As You Go for your phone, iPad or tablet, you can call to top up your data plan. If you’re studying or working abroad, International Pay As You Go helps you stay in touch with family and friends back at home. You can also call if you want to switch to a different Big Bundle, if you need a higher or lower data allowance. If you start to use your phone more, you may want to call to cancel and move to a monthly tariff.

Pay Monthly Team

With a Pay Monthly O2 SIM, you can save money and even keep your number when you transfer networks. Your Pay Monthly tariff could be for a mobile phone, tablet, or mobile broadband. You can save data with access to free O2 Wifi on the go, and get VIP access on Priority. For assistance with your account, call 0843 557 4524. Call if your circumstances change and you need to switch to a different tariff. You might also want to change your contract from 30 days to 12 months, or cancel altogether. Please note that helpline hours vary for Platinum customers.

O2 Smart Home

Unfortunately, like O2 Money, O2 Smart Home is closing down. There is no due date for the closure yet, but O2 will contact you to give you advance notice. In the meantime, you can still call 0843 557 3365 for customer support. You won’t have to pay any more subscription fees, and you can organize a refund for any Smart Home devices purchased from O2. Once O2 Smart Home closes, only Tado Smart Thermostats and Yale Smart Locks will work without it. Call for more information or if you need help saving data from your Smart Home app before it’s gone.

Business

Call 0843 557 3744 if you are an existing or potential business customer with a query about O2 Business services. As well as discounted phones, tablets, SIMs, and mobile internet, you can get so much more with O2. You could get fixed call rates and data Bolt Ons for international business, plus easy conference calls for £5 a month. Your dedicated Digital Advisor will help you find the technological solutions to grow your business. Apps offer you secure access anywhere with Mobile Device Management. Call to set up a My O2 Business Account for online access to bills.

Affiliates

Website owners managing their site content and organizations providing products or services can become O2 affiliates. By directing your online traffic to the O2 online shop, you can earn commision on sales. You can even choose which O2 program is most relevant for your website’s market. This could be free SIMs, SIM contracts, handset contracts or O2 Recycle. Call 0843 557 3744 for assistance registering with AWIN and checking if you qualify to promote O2. Once approved, you just need to enable O2’s product feeds on your website to start earning.

The Blue

The Blue is O2’s media centre, home of news and views from the world of O2. Call 0844 453 0127 to connect to O2’s press office. The duty press office manager will answer the phone outside office hours. This line is available 24 hours a day for any urgent press enquiries. If you run a publication and want O2 to advertise with you, then call to transfer to O2’s media buying agency. For charity requests, visit O2’s Think Big website. If you are hoping to get a sponsorship from O2, call to find out how you can apply or how to get support from O2 for a local event.

Careers

Call 0844 826 8016 if you’re looking to join the 7,000 people who already work for O2 across the UK. With benefits like shopping and childcare vouchers, travel and dental insurance, why wouldn’t you? There’s a pension scheme, learning fund, staff discounts, and flexible working. O2 values people who are “Bold, Open, Trusted” to benefit the business, which means straightforward and innovative. O2 often needs contractors for specialist skills, so get in touch to make an enquiry. When you call, O2 can give you the contacts you need to progress with an opportunity.

Other Ways to Contact O2

You can try getting hold of an O2 customer services team member on social media. Leave comments or send messages on Facebook or Twitter, but replies aren’t guaranteed. If you have the time to browse online, get involved with the O2 Community. Customer share tips and problem resolutions which might be helpful to your situation. If you would rather write a letter, you can find the addresses to send mail to O2 below. There is a PO Box in Winchester for customer services and complaints. If your reason for writing is unrelated to O2 products, or you want to escalate a complaint, write to the O2 head office in Slough.

Department
Address
Phone/Broadband/O2 Services
O2 Correspondence Team
PO BOX 694
Winchester
SO23 5AP
Complaints
O2 Complaints Review Service
PO BOX 694
Winchester
SO23 5AP
UK Head Office
Telefónica UK Limited
260 Bath Road
Slough
Berkshire
SL1 4DX
United Kingdom