Want to talk?

Tell us what you want to talk about and we'll let you know your options. 

Pay Monthly

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 +44 344 809 0202 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

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

Pay As You Go

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 International rates†
Opening times
Monday - Friday 8am - 9pm
Saturday 8am - 8pm
Sunday 8am - 6pm
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

* Calls are free to our customers when calling in the UK or when roaming in our Europe Zone.
† See o2.co.uk/international for calling rates when abroad

O2 Business

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 +44 808 100 4439 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

Home Broadband

If you've moved your services to Sky, please visit contactus.sky.com for options.

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
O2 Consumer mobile phone sales Number Charges
From any phone 08442 02 02 02 5p per min service charge plus your phone company's access charge
Opening times
Monday - Friday 8am - 9pm
Weekend 9am - 5pm
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

Phone with My O2 on the screen

Download the My O2 app

To check your data and manage your account from your phone.

Phone with My O2 on the screen

Download the My O2 app

To check your data and manage your account from your phone.

Person smiling

Give us a moment

We're just checking to see if there's an available agent.

 

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.