List of O2 Customer Service Numbers

List of O2 Service Email Address

O2 Service Postal Address

  • Customer Servicer Postal address O2 Correspondence Team, PO BOX 694, Winchester, SO23 5AP
  • Registered Office: 500 Brook Drive, Reading, Berkshire, RG2 6UU, United Kingdom
  • Bereavement Team: O2 Bereavement Team, PO Box Virgin Media O2 Sunderland SR43 4AA
  • Make a Subject Access Request: Subject Access, O2 Partnership, Chester Road, Preston Brook, Runcorn, WA7 3QA
  • Data Rights Request: Telefónica UK Limited, Correspondence Department, PO BOX 694, Winchester, SO23 5AP
  • Solicitor requesting a statement with client’s data: Court Disclosure, Telefonica UK Ltd, 260 Bath Road, Slough, SL1 4DX
  • Requesting personal data for Travel insurance: Mondial Assistance UK Ltd., O2 Quality Standards, Mondial House, 102 George Street Croydon, Surrey, CR9 1AJ
  • Communications Ombudsman: PO Box 730, Warrington, WA4 6WU
  • Financial Ombudsman Service: Exchange Tower, London, E14 9SR
  • All queries can be discussed with the advisors over the phone at O2 UK customer service telephone number 0344 809 0202
  • Call O2 number: +44 786 098 0202 when calling from abroad
  • Dial 2202 from O2 mobile. The O2 UK customer service opening times are from Mon- Fri 8 am – 9 pm, Sat 8 am – 8 pm and Sun 8 am – 6 pm.
  • O2 platinum customers can call from Mon- Fri 8 am – 8 pm, and Sat- Sun 9 am – 6 pm.
  • O2 retention team can be contacted from Mon- Sat 8 am – 8 pm and 10 am – 6 pm on Sun and for upgrades, you can call Mon- Sat 8 am – 8 pm and 8 am – 6 pm on Sun
  • You can check all data, view the bills, upgrade options and manage all transactions by logging in to the O2 online account via the page.
  • You can also have an online conversation through O2 UK live chat forum via this page.
  • You can contact O2 customer service through O2 Facebook and O2 Twitter accounts. Best times to contact them throhgh social media: Mon- Fri 7 am – 10 pm and 8 am – 8 pm Sat- Sun.

O2 UK Postal Address

If you prefer to write, you can send the correspondence at the following O2 UK postal address and the O2 UK customer support team will make sure to revert back as soon as possible.

O2 Correspondence Team, PO BOX 694, Winchester, SO23 5AP

O2 UK Pay as You Go

You can check the balance easily online by signing in via the page or you can check the steps to be followed through this page. In order to top up the balance, you have various ways such as

  • Web top up- you can top up through your mobile number and a credit or debit card
  • Auto top up- by signing in online via this
  • Over the phone- you can call 4444 free from your mobile, or O2 UK contact number 0845 606 2277 from a landline using your debit or credit card
  • Top Up Voucher- you can go to O2 shop or wherever there is green top-up logo and ask for an O2 top-up and then dial 4444 free from your mobile, or O2 phone number UK 0845 606 2277 from a landline, and follow the instructions.
  • E-Top Up card- give your e-top up card at any O2 shop or other store with the green top-up logo to top up
  • Top up abroad- you can call 4444 free from your mobile anywhere in the world or you can enter *111*# and press the call button.

For all questions related to pay as you go plan, you can reach the O2 UK customer services team at O2 UK telephone number 0344 809 0222 or +44 786 098 0202 when calling from abroad or 4445 from your O2 mobile

O2 UK Business Contact

All queries about O2 UK business account can be discussed with the support staff at O2 business contact number UK 0800 977 7337 or +44 808 100 4439 when calling from overseas or 8222 from your O2 mobile. The O2 business contact hours UK are from 8 am – 8 pm Mon- Fri and 9 am – 5 pm Sat- Sun and bank holidays. You can also use the business apps to communicate via this page or send the requests by mail at the above mentioned O2 UK postal address.

O2 UK Vulnerable Customers Contact

  • The special needs customers can get in touch with the O2 UK customer support team to access any of the services. You can submit the requests in an online form via the page or you can meet any advisor at any of the O2 store.
  • If you are in a residential care home and need online help placing your order, then O2 access for you team will be happy to help. You can send the message via O2 WhatsApp number UK 0792 133 6150 and the team will make sure to reply back within 24 hours.
  • You can also use the SignVideo service to contact from Mon- Fri 8 am – 6pm and for any technical help you can send the details via email [email protected]
  • Relay UK services can also be used to make call and check the information via their page.
  • You can apply for free directory assistance and information by calling BT Directory Assistance on 195.

O2 UK Broadband Customer Service

For all broadband queries, the O2 mobile customers can dial 4445 and if you are not a customer, then you may dial O2 UK telephone no 0344 809 0202 for monthly and pay as you go mobile broadband and O2 contact number UK 0800- 0800 977 7337 for business mobile broadband.

O2 Travel Insurance UK Contact

The travel cover is not for new customers and for existing customers, if you need medical assistance, or to make a claim, you may dial O2 travel insurance UK contact number 0208 239 3902 and for claims, you can call O2 travel insurance claims UK 0844 463 0202 from Mon- Fri 8 am – 6 pm.

O2 UK Bereavement Team

The O2 UK customer support team is always accessible to support bereaved customers and those who have been diagnosed with a terminal illness. You can contact them either at O2 UK bereavement team contact number 0800 090 1820 from Mon- Fri 8 am – 4:30 pm or via O2 contact email UK Bereavement&[email protected]. You can send the requests at the O2 UK address: O2 Bereavement Team, PO Box Virgin Media O2 Sunderland SR43 4AA

O2 UK Payment Support Contact

If you don’t think you will be able to pay the bills on time, you can get in touch with the O2 UK payment management team at O2 contact number UK 0800- 0800 902 0217 from Mon- Fri 8 am – 8 pm, Sat 8 am – 6 pm and Sun 9 am – 6 pm and they will surely find a right solution.