Septembre 2021 —

O2 Customer Service: how to reach them?

Hey there! You are an O2 client and try to find answers to your question? You are living there? Are you looking for a simple and efficient way to get credit and data with O2? You are at the right place! Find out everything you need to know about O2 Customer Service, all its services, and how Monisnap can make your life easier!

Discover how to buy an O2 top up in a minute!

O2 Customer Service

O2 Customer Service: helpline
O2 Customer Service

Telefonica O2 plc (known as O2 or before March 2005 as mmO2) is a British telecommunications company specializing in mobile telephony, originally part of the BT Group and owned since 2005 by the Spanish operator Telefónica. The firm is headquartered in Slough, with major offices in Bury, Glasgow, Leeds, and Preston Brook.

Launched in 1985 as Cellnet, O2's UK operations were a joint venture between BT Group (60%) and Securicor (40%). In 1993, Cellnet launched GSM services, and in 1999, Securicor sold its shares in O2 to BT: O2 was renamed BT Cellnet. BT Cellnet was integrated into BT Mobile.

O2 was created when BT separated from its cell phone business. The BT Cellnet brand was renamed O2, the chemical symbol for oxygen.

In May 2020, Telefónica and Liberty Global announced the merger of O2 and Virgin Media in the United Kingdom in a deal valuing the combined entity at nearly $38 billion, including debt. Both companies will have a 50% stake in the combined entity.

O2 is operating in three countries:

  • United Kingdom: Telefonica O2 had a market share of 26% in 20099.
  • Germany: O2 had a 13.5% market share in June 200910.
  • Spain: O2 is Telefonica's low-cost secondary brand under the Movistar umbrella, launched on June 20, 2018

O2 offers several services such as O2 packages and prepaid card, credit, or data O2 top up online.

O2 Customer Service can help you on several issues that you could met in your customer experience such as your device, manage your account and bills or the network and roaming.

Reach the O2 Customer Service in UK

O2 Customer Service has several contact information and numbers. The one to use depends on the package you’ve got and your need.

By phone

You can reach the O2 Customer Service in UK by dialling:

For pay monthly O2 Customer Service:

  • From your O2 mobile: 202
  • From a landline: 0344 809 0202
  • From abroad: +44 7860 980 202

For pay as you go O2 Customer Service:

  • From you O2 mobile: 4445
  • From a landline: 0344 8090222
  • From abroad: +44 7860 980 202

For the top up O2 Customer Service:

  • From your O2 mobile: 4444
  • From a landline: 0345 6062277

For business O2 Customer Service:

  • From your O2 mobile: 8002
  • From a landline: 0800 977 7337
  • From abroad: +44 7860 980 202

For online business O2 Customer Service:

  • From your O2 mobile: 8002
  • From a landline: 0800 977 7027
  • From abroad: +44 808 100 4439

For mobile broadband O2 Customer Service:

  • Pay Monthly Mobile Broadband: 0344 809 0202
  • Pay As You Go Mobile Broadband: 0344 8090 222
  • Business Mobile Broadband: 0800 977 7337

By email

You also can contact O2 Customer Service by email at: [email protected]

How to get O2 Customer Service number?

You can, at any moment find every Customer Service contact, according to your reclamations and needs, on O2 website in the “contact us” service.

O2 mobile: top up online in 1 minute with Monisnap (ex Allo)

Want to buy a phone top-up now? Monisnap (ex Allo) is the easiest and cheapest way to top up your credit in a minute!

With Monisnap (ex Allo), you can buy credit top up from many operators including O2, with the most competitive rates on the market! Monisnap (ex Allo) is here to make your work easier and to allow you to benefit as simply as possible from credit or internet top-ups.

It is quite simple. Either on the website of Monisnap (ex Allo) or on the mobile application:

  • Enter the country and phone number you want to top up
  • Choose the O2 credit or data top-up you want
  • Pay on our secure website

You are all set! The beneficiary's mobile will then be credited in one of the following ways depending on the top-up purchased:

  • If it is an "Instant top-up", it will be automatically credited to the recipient's mobile, who will receive a confirmation SMS
  • If it is a "PIN top-up", you will receive a PIN code by email and on your customer area with the instructions to follow to top up the mobile

The type of recharge (instant or PIN) is indicated in the description of each recharge.

Get your top up right now!

❓ What is O2 mobile ?

O2 is a phone service provider which offers severals plans, prepaid sim cards and credit or data top up to call locally and internationally!

💰 How can I top up?

It's simple! Just go on the website of Monisnap (ex Allo) or on the phone application to top up in a minute!

💡 Why should I use Monisnap (ex Allo)?

Because it is the more simple, fastest and cheapest way to top up your phone!

Yannis Rahal


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