O2

Existing O2 Business Customers

If you're already an O2 business customer, whatever your query, our Customer Service Team can help you get more from our service. And you can contact us, free of charge, from either your landline or mobile phone. The number to call us on is on the top of your bill, or you can dial 8002 from your mobile, or alternatively contact us by email.

Alternatively, you can use our 24/7 Online Help service. It's packed with useful O2 FAQs and should answer any of your questions.

New to O2?

If you're not an O2 business customer, and would like to be, our Business Team will also respond quickly to any sales enquiries you might have. There are a number ways to get in touch.

If you’d like 10 or less devices:

• Phone 0800 089 0202 to speak directly to one of our O2 Business Sales Representatives, Monday to Friday 9am to 5pm

Or, if you need more than 10 devices:

• Send us your requirements and we'll contact you within 48 hours with a personalised quote
• Or you can contact an O2 Account Manager in your area directly on their mobile