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.

† 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.

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.

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

* 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.

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.

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.

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

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.

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.

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

O2 Correspondence Team
PO BOX 694
Winchester
SO23 5AP