We hope you never have a reason to complain about any of our services. But if there's something we can help you with, this page has the answers you need.

What can we help you with?

Follow the links below to our helpful support articles. They will help you get to the bottom of your issue quickly and easily.

Need to get in touch?

Call us from your mobile, a landline or abroad

Call free from your O2 mobile

  Number Opening times
Pay Monthly 202 Monday - Friday 08:00 - 21:00. Saturday 08:00 - 20:00. Sunday 08:00 - 18:00.
Pay As You Go 4445 Monday - Friday 08:00 - 21:00. Saturday 08:00 - 20:00. Sunday 08:00 - 18:00.
Business 8002 Monday - Friday 08:00 - 20:00. Saturday and Sunday 09:00 - 17:00.
From a landline
  Number Opening times

Pay Monthly

Standard UK Rates

0344 8090202 Monday - Friday 08:00 - 21:00. Saturday 08:00 - 20:00. Sunday 08:00 - 18:00.

Pay As You Go

Standard UK Rates

0344 8090222 Monday - Friday 08:00 - 21:00. Saturday 08:00 - 20:00. Sunday 08:00 - 18:00.

Business

Standard UK Rates

0800 9777337 Monday - Friday 08:00 - 20:00. Saturday and Sunday 09:00 - 17:00.
From abroad
  Number Opening times

Pay Monthly

Free from an O2 mobile

+44 344 8090202 Monday - Friday 08:00 - 21:00. Saturday 08:00 - 20:00. Sunday 08:00 - 18:00.

Pay As You Go

International rates

+44 7860 980202 Monday - Friday 08:00 - 21:00. Saturday 08:00 - 20:00. Sunday 08:00 - 18:00.

Business

Free from an O2 mobile

+44 808 1004439 Monday - Friday 08:00 - 20:00. Saturday and Sunday 09:00 - 17:00.

Still not happy?

We’ve provided our Complaints Code of Practice so you have all the information you need about the process and how we provide resolutions. You can find this here.

You can contact our Complaint Review Service directly by email or post.

O2 Complaints Review Service
PO BOX 694
Winchester
SO23 5AP

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You get in touch

If you haven’t found what you’re looking for online, our Resolutions Specialists are on hand to help. We will let you know when we’ve received your mail.

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We investigate

We will direct your mail to our Resolution Specialists or Customer Support, depending on the help you need. Our dedicated team will take the time to fully understand your issue.

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We provide a resolution

Once our investigation is complete, we’ll come back to you with an outcome and explain what this means for you.

If we’re unable to agree on a resolution, or we take more than 8 weeks to respond, you may wish to escalate this by contacting the relevant Ombudsman:

Ombudsman Services: Communications

Ombudsman Services: Communications can help to sort out a complaint with us as a communications company.

You're not charged for using the service. They investigate complaints fairly by listening to both sides of the story and looking at the facts.

If you'd like to know more about the way they work and what they can help with, visit their website. You can also contact them this way too.

You can call Ombudsman Services: Communications on 0330 440 1614 or write to them at:

Ombudsman Services: Communications
PO Box 730
Warrington
WA4 6WU

The Financial Ombudsman Service

The Financial Ombudsman Service can help if you've complained about a financial product and you're not happy with how things have turned out. It doesn't cost anything to use the service and they'll look at what's happened and give an unbiased view.

You can call the Financial Ombudsman Service on 0300 123 9 123, email complaint.info@financial-ombudsman.org.uk or write to them at:

Financial Ombudsman Service
Exchange Tower
London
E14 9SR

There's an online leaflet you can read with more information on what the Financial Ombudsman can help with.

You can view our complaint data here.

Raise your issue with Resolver

If you’d prefer, you can raise your issue with Resolver - the free, independent complaints service. Learn more about Resolver.

Business Partner complaints

If you’re a Business customer and your account is Partner managed, please make your complaint directly to your Partner.

Raising your complaint with O2 could mean it takes longer to resolve, as sometimes we have to pass the information onto the Partner in question.

Find your Partner’s contact information

Ofcom

Ofcom is the telecommunications regulator, which means they oversee certain policies and processes in place for customers.

Ofcom doesn’t investigate individual complaints from customers, but they can provide information and advice.

If something has gone wrong, please let us know so we can try to put things right – we have dedicated advisors who’ll be happy to help. Find the best ways to contact us.

Our Resolution Specialists are here to help