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The O2 customer service phone number is 01904 500702. Call us for help with billing, technical issues, account queries, contract information, and upgrade eligibility. Our UK-based team is ready to assist you.

Simply dial 01904 500702 from any phone. Have your O2 account number and phone number ready. Our UK team will answer your call and help with your query. Lines open Monday-Friday 8am-8pm and Saturday 10am-4pm.

O2 customer service is open Monday-Friday 8am-8pm and Saturday 10am-4pm. We're closed on Sundays and bank holidays. For urgent issues outside these hours, online support is available 24/7 through the My O2 app.

Yes, calling O2 customer service is free from O2 mobiles. Standard rates apply from other networks and landlines. There are no premium rate charges or hidden fees.

Average wait time is less than 5 minutes. Peak times are typically 12pm-2pm on weekdays. For faster service, call early morning (8am-10am) or late afternoon (4pm-6pm).

Yes, you can call 01904 500702 from abroad. International calling rates will apply. Alternatively, use the My O2 app for free online support while traveling.

Have your O2 account number, registered phone number, account holder name, and date of birth ready. For billing queries, have your recent bill available. For technical issues, note any error messages.

Yes, our team can help with all billing issues including unexpected charges, bill explanations, payment problems, direct debit queries, and billing disputes. Call us for immediate assistance.

Call 01904 500702 and our team will check your upgrade eligibility. Most customers can upgrade 3 months before their contract ends. We'll explain all available upgrade options.

Yes, you can discuss contract cancellation by calling our customer service team. We'll explain any early termination fees, notice periods, and the cancellation process. PAC codes can also be provided over the phone.

Call 01904 500702 immediately to report your lost or stolen phone. We'll help you suspend your service, block your SIM, and arrange a replacement SIM card. This prevents unauthorized usage.

Yes, our technical support team can help with network issues, no signal problems, data connection issues, SIM card problems, device faults, and software issues. We provide step-by-step troubleshooting guidance.

Call 01904 500702 and request your PAC (Porting Authorization Code) to transfer your number to another network. We'll provide it immediately over the phone. PAC codes are valid for 30 days.

Yes, call our customer service team to discuss tariff changes. We'll explain all available plans, pricing, and help you choose the best tariff for your usage. Tariff changes usually take effect within 24 hours.

Call our customer service team for roaming support. We can check if roaming is enabled on your account, explain roaming charges, help with connection issues, and recommend travel bolt-ons for your destination.

Yes, if you have O2 insurance, call our team to start a claim for lost, stolen, or damaged devices. We'll guide you through the claims process and arrange a replacement device if your claim is approved.

Call 01904 500702 to update your address, email, payment details, or other personal information. For security, you'll need to verify your identity with your account details and date of birth.

Yes, our team can help with My O2 app problems including login issues, forgotten passwords, account verification, and app technical problems. We'll help you regain access to your account.

Call our billing support team immediately. We'll review your bill in detail, explain all charges, investigate any errors, and arrange refunds if charges were incorrect. Bring your bill reference number when calling.

Yes, we provide support for O2 business accounts including multiple line management, business tariffs, device procurement, and business-specific queries. Our team understands business customer needs.