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Get the answers you need in our useful help and support pages, or give us a call.
Pay Monthly

You might be able to find you answer online. Take a look at some of our help articles to see if they have the information or solution you need.

 

Worried about paying your bill? Learn about payment support.​

Bill higher than expected? Read about what those extra charges might be.​

​Need to check your bill? Find out how to view your bill online.​

Looking for a new device?​ Browse Pay Monthly phones​

Want to see our sim only deals?​ Browse Pay Monthly sims

​For any other Pay Monthly questions, check our Pay Monthly help articles.​

 

We're always improving security. So we're introducing Automatic Security Verification software, to check we're talking to you. We'll ask you for your security answer before you speak to us. And if you don't have one yet, or can't remember your answer, we'll help you set it up.

You can set up your security answer online, before you speak to us. Just sign in to the My O2 app and go to Settings, then Security and Privacy, then Change security question.

Customer Service Number Charges
From your O2 mobile 202 Free
From a landline 0344 809 0202 Standard UK rate
From abroad +44 7860 980 202 Free†
Opening times
Monday - Friday 8am - 9pm
Saturday 8am - 8pm
Sunday 8am - 6pm
Platinum customers
Monday - Friday 8am - 8pm
Saturday 9am - 6pm
Sunday 9am - 6pm
Upgrades
Monday - Friday 8am - 8pm
Saturday 8am - 8pm
Sunday 8am - 6pm
Retention
Monday - Friday 8am - 8pm
Saturday 8am - 8pm
Sunday 10am - 6pm

† Free from an O2 Pay Monthly mobile, other providers' charges may vary.

You can call Marketing Interactive Voice Response 24/7, Monday to Sunday, to purchase more data and add Bolt Ons.

Marketing Interactive Voice Response Number Charges
From your O2 mobile 2202 Free

Pay As You Go

You might be able to find your answer online. Take a look at some of our help articles to see if they have the information or solution you need.

 

​Want to keep an eye on your usage? See how to check your balance.​

Running low on credit? Find out how to top up your phone.​

Got a question about Big Bundles or UK & International Bundles? Read about Pay As You Go bundles.​

Want a new sim? Browse our Pay As You Go sims.​

For any other Pay As You Go questions, check our Pay As You Go help articles.

 

We're always improving security. So we're introducing Automatic Security Verification software, to check we're talking to you. We'll ask you for your security answer before you speak to us. And if you don't have one yet, or can't remember your answer, we'll help you set it up.

You can set up your security answer online, before you speak to us. Just sign in to the My O2 app and go to Settings, then Security and Privacy, then Change security question.

Customer Service Number Charges
From your O2 mobile 4445 Free
From a landline 0344 8090222 Standard UK rate
From abroad +44 7860 980 202 Free†
Opening times
Monday - Friday 8am - 9pm
Saturday 8am - 8pm
Sunday 8am - 6pm

You can call Marketing Interactive Voice Response 24/7, Monday to Sunday, to purchase more data and add Bolt Ons.

Marketing Interactive Voice Response Number Charges
From your O2 mobile 2202 Free
Top-up service Number Charges
From your O2 mobile 4444 Free
From a landline 0345 6062277 Standard UK rate
Opening times
Monday - Sunday 24 hours
Upgrades and Retention
Monday - Friday 8am - 8pm
Saturday 8am - 8pm
Sunday 10am - 6pm

* Calls are free to our customers when calling in the UK or when roaming in our Europe Zone.
† Free from an O2 Pay As You Go mobile, other providers’ charges may vary.


O2 Business

You might be able to find your answer online. Take a look at some of our help articles to see if they have the information or solution you need.

 

Got a question about O2 Business or your account?​ Browse our business help articles.​

​Looking to place an order?​ Visit our business shop.​

​Need to get in touch with O2 Business urgently? Find the right number to call.

 

We're always improving security. So we're introducing Automatic Security Verification software, to check we're talking to you. We'll ask you for your account password before you speak to us. And if you don't have one yet, or can't remember your answer, we'll help you set it up.

Business Customer Service Number Charges
From your O2 mobile 8002 Free
From a landline 0800 977 7337 Free
From abroad +44 7860 980 202 Free†
Opening times
Monday - Friday 8am - 8pm
Saturday 9am - 5pm
Sunday 9am - 5pm
Online Business Customer Service Number Charges
From your O2 mobile 8002 Free
From a landline 0800 977 7027 Free
From abroad +44 808 100 4439 Free†
Opening times
Monday - Friday 8am - 8pm
Saturday 9am - 5pm
Sunday 9am - 5pm
Enterprise Customer Service
Contact your account manager
If you are managed by a local partner please contact your partner

Limited service outside of these hours is available if you have lost or had your mobile phone stolen, or if you have a fault on your O2 landline.
† Free from an O2 Business mobile, other providers' charges may vary.


Broadband

Mobile Broadband Customer Service

If you’re an O2 mobile customer, please call your normal Customer Service number. You’ll find this in the Pay Monthly, Pay As You Go or Business sections above.

If you’re not an O2 Mobile customer, please choose one of the numbers below:

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


Joining O2

You might be able to find your answer online. Take a look at some of our help articles to see if they have the information or solution you need.

 

New to O2? Visit our shop.​

Already with O2? See your upgrade options.

Business customer? Visit our business shop.

O2 Consumer mobile phone sales Number Charges
From any phone 0800 081 0255 Free
Opening times
Monday - Friday 8am - 8pm
Weekend 10am - 6pm
Sunday 10am - 6pm
O2 Business sales Number Charges
More than 10 phones 0800 298 8848 Free
Less than 10 phones 0800 028 0202 Free
Opening times
Monday - Friday 9am - 5pm

O2 Travel Insurance

We no longer sell travel insurance to new customers, but if you have an existing policy don't worry, you're still covered. If you need medical assistance, or to make a claim, here are the numbers to use.

24-hour Emergency Services:

+44 20 8239 3902 when calling from outside the UK.

020 8239 3902 when calling from within the UK.

Claims:

0844 463 02 02 Lines open Monday-Friday, 8am-6pm.

If you have any questions about your policy, please call Customer Service: 0844 463 02 02. Lines open Monday-Friday, 9am-5pm.


Prefer to write to us?

Here’s the address, if you’d rather drop us a line:

O2 Correspondence Team
PO BOX 694
Winchester
SO23 5AP


 

Other ways to find answers

 

Not happy about something?

Tell us what's gone wrong and we'll try to make things better.
See how to make a complaint, or take a look at our Customer Complaints Code.