Call O2 Customer Service for Upgrades & Support
Speak to an O2 Expert Now - Upgrades, Plans & Customer Service
Get instant help with O2 upgrades, plan changes, and customer service. Our specialists handle all O2 enquiries. Call now for exclusive upgrade deals.
Mon–Fri 8am–8pm, Sat 9am–6pm
Comprehensive O2 Services
A dedicated concierge for all your mobile requirements. Bypass the queues and speak directly to a decision-maker.
O2 Upgrades
Priority access to iPhone 17 & Samsung S25 inventories. Keep your number, upgrade instantly.
Check EligibilityTechnical Support
Direct line to UK specialists for network troubleshooting, SIM swaps, and device setup.
Get SupportCorporate Deals
Exclusive tariffs and hardware bundles not available on the public street.
View OffersLatest Devices & Exclusive Deals
Upgrade to the latest technology with our market-leading O2 packages. Call our experts to check your eligibility.
iPhone 17 Pro Max
The ultimate Pro.
£30 upfront
- Unlimited Data
- Unlimited Calls
- Unlimited Texts
Buy two or more for £46.50* a month each or one for £51.50*
iPhone 17
Trusted and reliable.
£30 upfront
- Unlimited Data
- Unlimited Calls
- Unlimited Texts
Buy two or more for £39* a month each or one for £44*
iPhone Air
Thinnest iPhone ever.
£30 upfront
- Unlimited Data
- Unlimited Calls
- Unlimited Texts
Buy two or more for £40* a month each or one for £45*
Unlimited SIM
Sim Only Deal
£0 upfront
- Unlimited Data
- Unlimited Calls
- Unlimited Texts
24 month plan. Perfect for your existing device.
Not sure which device is right for you?
Our O2 experts can help you compare specs, prices, and find the perfect plan for your budget.
Speak to an ExpertThe Mobile Friendly Advantage
Premium support for
Serious connections.
Direct Human Connection
Bypass automated systems entirely. Connect immediately with a UK-based specialist who understands your account history.
Executive Upgrades
Unlock priority access to the latest iPhone & Samsung devices with exclusive business-tier pricing structures.
Premium Connectivity
Experience uncompromised reliability on the UK's most awarded 5G network, optimized for professional use.
Priority Resolution
Technical and billing issues resolved with urgency. We handle the complexity so you can focus on your business.
O2 Customer Service FAQs
Common questions about calling O2 for upgrades and customer service
Still Have Questions About O2?
Call now to speak with an O2 specialist. We're here to help with upgrades, customer service, and all O2 enquiries.
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Mon–Fri 8am–8pm, Sat 9am–6pm