How do I call O2 customer service?

Call undefined to speak directly to O2 customer service. Our specialists handle all O2 enquiries including upgrades, billing, technical support, and account changes.

Can I upgrade my O2 phone by calling?

Yes! Call us for instant O2 upgrades. We'll check your eligibility, show you the best upgrade deals, and process your O2 upgrade over the phone.

What O2 services can I get help with?

We help with all O2 services: phone upgrades, plan changes, billing queries, technical support, network issues, SIM swaps, unlocking, and account management.

Mobile Friendly - Best Phone Upgrades & Customer Support

Fastest Response

Call Our Team

Speak directly to a human expert. No automated menus, just instant support for sales and upgrades.

0800 058 8325

Average wait time: < 1 minute

Send Us a Message

Fill out the form below and we'll get back to you within 24 hours.

Opening Hours

Mon–Fri 8am–8pm, Sat 9am–6pm

Closed Sundays & Bank Holidays

Email Support

hello@mobilefriendly.co.uk

Response within 24 hours

Registered Office

Mobile Friendly
London, United Kingdom
Company Reg: N/A (Sole Trader)

Why Call Us?

✓Exclusive O2 Upgrade Deals
✓Keep Your Existing Number
✓Next Day Delivery Setup
✓UK-Based Expert Support
✓Business & Personal Plans

Call Now

About Us

Mobile Friendly is an independent mobile phone retailer. We are here to help you find the best deals and resolve connectivity issues.

Contact Us