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O2 Customer Services

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O2 is a leading digital communications company with over 23 million customers. o2 runs 2G, 3G and 4G networks across the UK, as well as operating O2 Wifi and owning half of Tesco Mobile. There are over 450 o2 retail stores and their service offerings also include broadband and an online shop to purchase handsets and much more.

O2 Information - 0844 453 5145

Do you need to contact O2? You can find their contact information below.

O2 Customer Services
Telefonica UK Limited Correspondence Department
PO Box 202
Houghton Regis


Opening Hours
Mon-Fri 8am-9pm | Sat-Sun 9am-5pm
Telephone Number
0844 453 5145
Calls to 084 numbers cost 7p per minute plus your phone company’s access charge.

O2 Reviews - 0844 453 5145

Jason T

3 years ago

Recently switched to o2 from another provider and I have not been massively impressed with their service so far. I have had issues with them transferring my new number, issues with my inclusive allowance and they messed up the direct debit payments. Im starting to regret switching!


O2 News - 0844 453 5145

O2 Contact Number

If you are a current O2 TU Go Customer and want to know how to get started with TU Go App. You may see the  Help Guide for more in detailed by clicking on the given link below:

Read More

O2 FAQs - 0844 453 5145

Q. How do I join O2?
A. You can join O2 by calling the O2 customer support department on the following O2 telephone number; 0844 453 5145. You can contact O2 Monday to Friday, 8am to 8pm and 8am to 6pm on Saturdays to discuss registration.

Q. What to do if I have Network connection issues with O2?
A. If you are facing with any issues with network connection issues with O2, Use O2’s live status checker at Official website, it will let you know about existing issues in your area.

If you are facing issues with Live status checker, then Please Contact O2 Customer Services department on Direct O2 Phone number: 0844 453 5145.

Q. How to fix Network and Signal problems with O2?
A. If you are a current O2 Customer and experiencing signal or network issues, TU Go and O2 Wi-Fi will help you to get online. If you are still having issues with Network and signal, you can also talk directly to O2 Customer support department on 0844 453 5145 to help you solve your network and signal issues.

Q. What do My O2 App Pay Monthly features do?
A. You can do the following for My O2 App Pay Monthly features:

  1. You can check your calling plan prices.
  2. You can click to call to pay your bills.
  3. You can see latest charges on your account.
  4. You can also check the bill summary, including last bill date, bill amount and payment due date.

    If you are experiencing any issue while using these features, you can contact My O2 Customer Services Team on 0844 453 5145. A O2 Customer service executive will help you to solve your issue.

Q. How do I view my O2 bill online?
A. If you would like to contact the O2 Billing department to understand and view your bill within your online account, you can call the O2 customer services team on 0844 453 5145. This will connect you directly with a O2 customer executive who will help you to understand and resolve any O2 billing issues you may have.

Q. How do I find more company details?
A. At Contact Numbers, we've listed a wide range of companies alongside their full contact details so that you don't have to scour the web for hours! Using our easy to navigate website you can quickly search for Customer Service details and live chat too! Simply enter the O2 you're looking for and follow the instructions on screen.

Q. When is it best to contact O2?
A. The peak time for most companies receiving calls is around 5-6pm, so try and avoid lengthy call queues by contacting them during the day if possible.

Q. How do I make a complaint to O2?
A. Here at Contact Numbers we recommend putting your complaint in writing to O2. A telephone call, followed by a written complaint could help your query be resolved more quickly. What’s more, you’ll have a written record of your communication with O2 for future reference should you need it.

Q. I have been expecting a call back and several days have passed - what should I do?
A. Depending on what they've told you - get on the phone if you think it's been too long! It might be that they're backlogged or have even misplaced your query. It's best to find out what the hold-up is before you take further action. you should call again on O2 customer services team on 0844 453 5145 and specify your problems.

Q. How much time should it take to resolve the query?
A. it should normally take less than a week to resolve a problems. O2 customer services aim to get your problem solved as quickly as possible - but if they don't, you can directly speak with a O2 customer service executive by calling on 0844 453 5145.

O2 Help Guides - 0844 453 5145

Useful help Guide on My O2 app

If you are an existing O2 Customer and if you are looking to manage your account easily. Please see the below help guide about My O2 App and its features.

My O2 App is now with Brand New design launched by O2. You can check your data usage and manage your account online easily. 

You should know the Key features of My O2 app before you download and install it on your device:

  1. My O2 App is available free to download for iPhone, Android and Windows Phone.
  2. You can check your data allowance.
  3. You can see who you have phoned and texted by name – My O2 App works with your Phone book.
  4. You can see 6 month detailed bill history.
  5. You can even top up or pay the bill.
  6. Check when you are due to upgrade. 

How to sign in to the My O2 App?

If you are an existing O2 Customer, then only you can use My O2 App. You will need to log in with your same Username and Password while you have registered on O2.  

If you are having any issue with sign in to your My O2 app, you can call O2 Customer Services Team on 0844 453 5145. 

Watch the official video on My O2 App:  

Disclaimer: Calls are charged at 7p per minute. Contact Numbers is UK’s leading phone book directory services and connects you to O2 Customer support department. This site is not affiliated to O2. 

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