O2

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0344 809 0202

O2 is a UK based mobile phone network. If you need assistance with an O2 product or service, call the number.

O2 Telephone Numbers

Department Opening Hours
Head Office Monday-Friday
8am-9pm
Saturday
8am-8pm
Sunday
8am-6pm
Customer Services Monday-Friday
8am-9pm
Saturday
8am-8pm
Sunday
8am-6pm
Pay Monthly Contract Monday-Friday
8am-9pm
Saturday
8am-8pm
Sunday
8am-6pm
Pay as you Go Monday-Friday
8am-9pm
Saturday
8am-8pm
Sunday
8am-6pm
O2 Priority Monday-Friday
8am-9pm
Saturday
8am-8pm
Sunday
8am-6pm
O2 Arena Monday-Friday
8am-9pm
Saturday
8am-8pm
Sunday
8am-6pm
Cancel Contracts Monday-Friday
8am-9pm
Saturday
8am-8pm
Sunday
8am-6pm
Upgrades Monday-Friday
8am-9pm
Saturday
8am-8pm
Sunday
8am-6pm

O2

O2 is a mobile network owned by Teléfonica. The network was first founded in 1985 as Cellnet. The company was originally part of BT until it was sold to Teléfonica in 2005. For more information about the products and services which are provided by O2 or about the corporation itself, call the O2 head office on the helpline number above.

Customer Services

You may need to contact customer services to inquire about an upgrade to your O2 mobile phone or contract, to find the location of your closest O2 store, for more information about an O2 tariff or another service, for assistance with mobile broadband, to ask a question about an O2 Priority offer, to get help setting up a device, to sell your old device to O2, for more information about O2 Drive car insurance, to track your order or report an issue with delivery or to make a complaint about an O2 product, service or employee. For any of these reasons or for a reason not listed call to speak to a member of the customer service team. O2 phones are usually delivered by a courier such as DPD or DHL. If you order a SIM, your SIM will be sent out to you via Royal Mail post. If you have not received your phone or SIM card please call and a member of customer services will help to track your parcels.

Pay Monthly Contract

O2 pay monthly phones are a good option if you enjoy having the latest smartphone and need quite a lot of data, texts and minutes. You might need to pay an upfront cost towards the cost of your phone, depending on which model you opt for. The cost of a pay monthly phone can vary widely between £9.99-80, once again depending on which model you opt for. When you buy a certain device, you might be eligible to claim a free gift such as a virtual reality headset, cinema tickets, speakers and headphones. You can purchase pay monthly phones online or visit your nearest O2 store as well as calling the number.

Pay As You Go

Pay As You Go means that you buy a phone outright and you pay for your data, minutes and text allowance on a top-up basis. You can buy some great phones using O2 Pay As You Go such as the Sony Xperia E5, Samsung Galaxy J3, the LG K8 and the Microsoft Lumia 650. You can still get great offers such as free gifts and free delivery. Once you have chosen your phone or if you already have a phone that you’re happy with, you can go ahead and choose your pay as you go tariff. You can choose from a bundle, where you will get a minutes/texts/data allowance in exchange for your top-up credit or you can opt for a classic pay as you go option where you can keep all your credit and get a free allowance from O2. Plus, every three months you will receive 10% of your top-ups back courtesy of the O2 Rewards scheme. To inquire about pay as you go or you would like to sign up for a pay as you go SIM card please call the number.

O2 Priority

As a member of O2 Priority, you will get free gifts every day. The gifts range from being entered into a prize draw to money off a Boots meal deal. You can also get access to gig pre-sales for top artists such as The Vamps. You will also get special benefits when you attend a gig at an O2 venue such as fast-track queues, pre-event lounges and a free pie and pint at the Twickenham Stadium. To sign up for O2 priority or if you have some questions about O2 priority please call the helpline.

O2 Arena

The O2 Arena is a large events venue in London. It hosts some of the world’s biggest acts such as Rod Stewart, Justin Bieber, Simply Red and the Capital Jingle Bell Ball. There are also top sporting events such as the NBA Global Games, the Barclays ATP World Tour Finals, UFC Fight Night and the World Cup of Gymnastics. Alongside the event space, there are plenty of other activities to do at the arena peninsula. There is an interactive Star Wars exhibition, Brooklyn Bowl bowling, restaurants and bars, Sky Studios and the Nissan Innovation Studios. The best way to get to the arena is by travelling via the tube to North Greenwich station. Alternatively, you could catch the cable car courtesy of the Emirates Air Line or the boat thanks to the MBNA Thames Clipper. For information about performances, tickets, accessibility or general questions please call the helpline.

Cancelling your Contract

If you’re at the end of your contract and you wish to keep your mobile phone number, you can do so by contacting O2 using the helpline number on this page and requesting your PAC code. Once you have used your PAC code, your account will be closed and you will be sent your final bill. You must give O2 30 days notice of your intention to cancel or you may be charged a cancellation fee. If you’re on the O2 Refresh tariff, you can cancel your contract at any time to upgrade by paying off your device plan. To cancel your contract call the helpline.

Upgrades

When your contract is up, you have the option to upgrade to a new device or you can keep your current device and swap to a SIM-only plan, which will be more affordable. If you do order your device online, you can get free delivery the next working day or you can opt to collect your order from your nearest O2 store. To find out if you’re due an upgrade or to select your upgrade please call the number.

Where is the O2 Head Office?

Department Location
Head Office 260 Bath Rd, Slough SL1 4DX