What is the best customer service number for O2?

*This website advises that calls to 084 numbers cost 7p/min plus your phone provider’s access charge.


It is easier to speak on the phone with an O2 customer service agent if you follow the tips that we provide you with at the end of the article. Just about every existing O2 customer at some point during their O2 contract will need to speak with a customer service representative. Although it can be a time consuming chore, particularly during peak hours, this is still the fastest and best way to get any problems you might be having with your service addressed and quickly resolved.

There are a number of different reasons why you might need to call O2 customer service. You might have moved to a different bank or city and need to update your payment or contact information. Or maybe you were the victim of a crime and need to report that your phone has been stolen. No matter how minor or major your issue is, a customer service agent will always be there to assist you no matter what time it happens to be.

Why might you need to contact O2 customer service?

Any phone can be used to call the O2 contact number. Their customer service is available 7 days per week, 365 days per year, with an average wait time of getting to speak with an agent being around 7 to 10 minutes.

The main reasons why you might need to call the O2 customer service number include the following:

– Update or change your account details
– Billing errors
– Loss or theft of mobile device
– Data issues
– Reporting a network failure
– Changes or modifications to your phone number
– Upgrade eligibility
– To cancel your O2 service
– Questions regarding your contract or service

About O2

O2 is a commercial brand that Telefonica UK owns. It is a leading digital communications company with recent statistics showing that has the highest satisfaction rate in terms of customer service among its clients. O2 has more than 23 million UK customers and owns 50% of Tesco Mobile as well.

O2’s helpline takes customer satisfaction and service very seriously. They not only have very well trained live agents taking your call and guiding you through the steps needed to resolve your issues, but they have developed an app that smartphone users can use as well. The wait time is minimal,when you are put on hold before speaking with a customer service agent, no matter what time of day it is.

Helpful tips when you are calling the O2 customer service number

– It will always be faster to make calls to the O2 customer support contact number during off peak hours.
– Make sure you have all of your personal details and account information on hand, so that you can get the support and help that you need quickly.

Answers to Common O2 Support Questions

Below are answers to common questions with answers that we have found for you from across the internet. Our goal is to bring these common questions together in one place so you can find answers faster. We are in no way connected to or represent O2. All information has been publically sourced from the internet and we cannot guarantee the accuracy of information.

Is it possible to keep my mobile number with O2?

Yes! Whether you are switching to O2 from another network, or moving between a Pay As You Go phone to a monthly plan, there are ways to keep your mobile number. Generally, you may need to request a PAC number from your current provider and fill out a ‘keep my number’ form.

What do I do if my O2 device is lost or stolen?

If your O2 device has been lost or stolen, a representative at O2 is there to help. They have the ability to block your device and send you a new sim that may allow you to use the same phone number. If you have purchased phone insurance, they can also assist in helping with your claim and replacement of your device.

Can I use my O2 service abroad?

Yes! O2 has a special service for people that may be traveling and want to use their service while abroad. With O2 travel, you have the ability to access talk, text and use internet in 65 countries worldwide. There are extra charges associated with this service. Contact O2 customer support for specific details on the O2 travel service.

How do I unlock an O2 mobile device?

The easiest way to unlock your phone is by using My O2 Online or the My O2 App. If you are a Pay Monthly customer, in most cases you can unlock your phone whenever you want, but you may need to complete your contract. If you use O2’s Pay As You Go service, you may only be able to unlock your phone 1 year after purchasing it.

What if my bill is more than expected?

Your bill could be higher due to using your phone abroad, calling premium rate numbers or buying extra services with your mobile credit. However, most unexpectedly high phone bills are due to going over the allocated amount of texts, calls or data in your tariff. If you would like to find out why your bill is higher than usual, call the O2 customer service desk enquire.

How can I save data on O2?

You can minimise the amount of data you use by downloading fewer films and TV shows, as well as by avoiding sending or downloading large email attachments. Another smart way to save your data is by using free WiFi wherever possible. Fortunately for O2 customers, O2 provides a number of WiFi hotspots throughout the country which can be used completely free of charge.

Can I send my phone in to be repaired by O2?

Potentially. Customers who bought a device in-store may be able to arrange repairs at the shop where they originally made their purchase. Customers who bought a phone online might be able to use O2’s online returns service to organise repairs. You may have to pay for some repairs but O2 may let you know in advance if this is the case.

What if I change my mind about my new phone?

If you change your mind about your new phone, you may need to contact O2 as soon as possible. In some cases, you may be able to receive a refund or exchange your phone model.

What are the benefits of the O2 app?

The My O2 App is free for iPhone, Windows and Android phones, as well as on many tablets. You can check past phone bills on the go and sync the bill with your phone book so that it shows contact names rather than just numbers.

How can I activate my O2 sim?

If you’re new to O2 as a Pay Monthly customer, you do not need to activate your sim, it’s already been set up. If you’re a new Pay As You Go customer, you just need to top up your phone credit, then your sim should automatically start working. O2 customers who need a new sim due to having a different sized device, you may need to use O2’s ‘swap my sim’ page.

How can I set up my O2 voicemail?

To set up your voicemail inbox, you just need to call 901 from you O2 registered phone. You may be given a number of automated options over the phone so that you can personalise your voicemail inbox. You may be able to add a security PIN and personal voice message to your mobile’s voicemail by following the instructions.

Have a better contact number for O2?