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Skip the queue and speak to a real person. Get help with billing, technical issues, and account services.
Opening Hours: Mon-Fri 8am-9pm, Sat 8am-8pm, Sun 8am-6pm
If you cannot get through to O2 customer service or are facing long hold times (some customers report waiting over 2 hours), here are proven alternatives to get help faster.
+44 7921 336150
Message O2 on WhatsApp for faster response than phone. Available for most account queries and support issues. Often quicker than waiting on hold.
Message on WhatsAppUse O2 Live Chat on the O2 website. Look for the chat bubble in the bottom right corner when browsing O2 pages. Connect with a real advisor without making a phone call.
Open O2 Live ChatContact @O2 on Twitter/X or O2 on Facebook. Their social media team responds quickly to public complaints. Available Mon-Fri 7am-10pm, Sat-Sun 8am-8pm.
Tweet @O2O2 customer service hold times can vary dramatically. Some customers report waiting 5+ hours during peak times. Here is when to call O2 for the shortest wait times based on actual customer experiences.
Early Morning: 8am - 10am
Lines just opened, minimal queue. Average wait: 2-5 minutes
Evening: 7pm - 9pm (Weekdays)
After work rush settles. Average wait: 5-10 minutes
Tuesday to Thursday Mornings
Mid-week is quieter than Monday or Friday
Monday Mornings
Highest call volume of the week. Waits can exceed 1-2 hours
Lunch Hours: 12pm - 2pm
Everyone calls during their lunch break
After Bank Holidays
Backlog from closed days causes extreme delays
Monday - Friday
8am - 9pm
Saturday
8am - 8pm
Sunday
8am - 6pm
Here are all the official O2 contact numbers. Use the right number for your situation to get connected faster and avoid being transferred between departments.
0344 809 0202
From any UK phone (standard rate, often included in minutes)
Call NowFrustrated with automated menus? Here is exactly how to bypass the O2 robot and get connected to a real human advisor quickly.
Call 0344 809 0202
Or dial 202 free from your O2 mobile
Say "Speak to an advisor"
The voice system recognises this phrase and will transfer you
Or press 0 repeatedly
This often bypasses menus and connects you to an agent
Have your details ready
O2 number, account PIN, and your issue - this speeds up verification
Use callback if offered
O2 sometimes offers to call you back instead of waiting on hold
Try Live Chat first
Often faster than phone, and you get written confirmation
Tweet @O2 for urgent issues
Public complaints on social media often get faster responses
Note the advisor's name
Always get a reference number and advisor name for follow-up
Before calling O2, try these solutions for the most common issues. Many problems can be fixed without waiting on hold.
If O2 has taken payment twice from your account, you are entitled to a refund. Double charges usually happen due to system errors or payment processing issues. Here is how to get your money back quickly.
You have the right to escalate if O2 will not refund a genuine double charge:
Many O2 customers experience poor signal indoors. This is often caused by building materials (thick walls, double glazing, insulation) blocking mobile signals. Here are proven solutions to improve your O2 signal at home.
Unexpectedly high O2 bills are one of the most common complaints. Before you panic, check these common causes and learn how to dispute any incorrect charges.
If your O2 mobile data has stopped working but you can still make calls and send texts, the problem is usually with your data settings or account, not the network. Follow these steps to fix it.
Go to Settings > Mobile > Mobile Data Options > Mobile Data Network to update these settings manually.
Some customers report difficulty cancelling their O2 contract. Here is what you need to know about your rights and how to leave O2 successfully.
If O2 makes it difficult, remind them of Ofcom regulations requiring easy switching. You can complain to the Communications Ombudsman if they obstruct you.
If O2 has not resolved your complaint, you have the right to escalate to the Communications Ombudsman who can order O2 to fix the problem and pay you compensation.
Call O2 on 0344 809 0202 and ask to make a formal complaint. Get a reference number. O2 has 8 weeks to resolve your complaint.
If O2 says they cannot help, ask for a Deadlock Letter. This confirms they cannot resolve your complaint and allows you to escalate immediately without waiting 8 weeks.
After 8 weeks or with a Deadlock Letter, contact the Communications Ombudsman. They are free to use and can order O2 to fix your problem and pay compensation.
Phone:
0330 440 1614
Lines open Monday-Friday 8am-6pm
Other Contact Methods:
O2 is one of the largest mobile network operators in the United Kingdom, serving over 34 million customers across its mobile, broadband, and business services. As part of Virgin Media O2, formed in 2021 through the merger of O2 UK and Virgin Media, the company operates an extensive customer service infrastructure designed to support millions of daily enquiries about billing, technical issues, account management, and device support.
The O2 customer service team operates from multiple contact centres across the UK, with the primary customer service number (0344 809 0202) connecting callers to trained advisors who can assist with a wide range of issues. Understanding how O2's support system works can help you get faster and more effective assistance when you need it. The company uses an automated phone system that routes calls based on your responses, so knowing exactly what you need before calling can significantly reduce your overall wait time.
O2's customer service hours are designed to accommodate most working schedules, with extended hours on weekdays (8am to 9pm) and slightly reduced hours on weekends. However, it's worth noting that certain specialist teams, such as the complaints department or business support, may have different operating hours. If you have a complex issue that requires specialist knowledge, calling during standard business hours (9am to 5pm, Monday to Friday) typically provides access to the widest range of support options.
When you contact O2 customer service, your call or message is initially handled by automated systems designed to resolve common issues without human intervention. This includes checking your account balance, making payments, and accessing basic account information. For more complex issues, you'll be connected to a human advisor who can access your full account details and make changes on your behalf.
O2 operates a tiered support system where frontline advisors handle most enquiries, with escalation paths to senior advisors, team leaders, and ultimately the complaints department for unresolved issues. Understanding this structure can help you navigate more effectively if your initial contact doesn't resolve your problem. You always have the right to ask for escalation if you feel your issue isn't being addressed appropriately.
As a UK mobile phone customer, you have specific rights protected by Ofcom regulations and consumer law. These include the right to accurate billing, the right to a clear complaints process, the right to cancel your contract (subject to any applicable charges), and the right to port your number to another network. O2, like all UK network operators, must comply with these regulations and provide clear information about your rights upon request.
If O2 cannot resolve your complaint within 8 weeks, or issues a "deadlock letter" indicating they cannot resolve your issue, you have the right to escalate to the Communications Ombudsman. This independent body can make binding decisions and order O2 to take specific actions, including paying compensation. Understanding this escalation process can be valuable if you're experiencing ongoing issues that O2 seems unable or unwilling to resolve through normal channels.
Explore our detailed guides for specific O2 issues. Each guide provides step-by-step solutions to help you resolve problems without waiting on hold.
High bills, wrong charges, payment issues, refund requests, and how to dispute O2 billing errors.
No signal, data not working, voicemail problems, WiFi calling setup, and network troubleshooting.
My O2 login problems, password reset, PAC codes, leaving O2, upgrades, and contract queries.
SIM activation, phone setup, eSIM transfer, PUK codes, and device troubleshooting guides.
Answers to the most common O2 customer questions about billing, technical issues, and accounts.
Every way to contact O2 including phone, chat, WhatsApp, social media, stores, and postal address.
Call O2 customer service now on 0344 809 0202
Lines open Mon-Fri 8am-9pm, Sat 8am-8pm, Sun 8am-6pm
Everything you need to know about contacting O2 support
If O2 is not answering or you face long hold times, try these alternatives: Use O2 Live Chat on the website, message O2 on WhatsApp at +44 7921 336150, contact @O2 on Twitter/X, use the My O2 app, or try calling at off-peak times (8am-10am or after 7pm). The O2 Community forum can also help with common issues.
The best time to call O2 is early morning between 8am-10am or after 7pm on weekdays. Avoid calling during lunch hours (12pm-2pm) and Monday mornings when call volumes are highest. Tuesday to Thursday mornings typically have the shortest wait times.
To speak to a real O2 advisor quickly: Call 0344 809 0202, say 'speak to an advisor' or press 0 repeatedly when prompted. Have your account details ready. Alternatively, use Live Chat or WhatsApp for faster response during busy periods.
If O2 charged you twice: Log into My O2 to check your payment history, call 0344 809 0202 and select billing, explain the double charge and request a refund. O2 can refund to your bank or credit your account. Keep a record of the call and get a reference number.
If O2 refuses your refund: First, escalate to their Complaints Team by calling and asking for a manager. If unresolved after 8 weeks, or if you receive a Deadlock Letter, you can escalate to the Communications Ombudsman at 0330 440 1614 who can order O2 to pay compensation.
To escalate to the Communications Ombudsman: Wait 8 weeks after your initial O2 complaint, or request a Deadlock Letter from O2 if they cannot resolve it sooner. Then contact the Ombudsman at 0330 440 1614 or online at commsombudsman.org with your complaint details and O2 reference numbers.
You have the right to cancel your O2 contract with 30 days notice. To cancel: text PAC to 65075 to keep your number (or STAC to leave without keeping it), or call 0344 809 0202. If within your minimum term, early exit fees may apply but O2 cannot refuse to let you leave.
For poor O2 signal indoors: Enable WiFi Calling in your phone settings (free on most O2 plans), use the O2 network status checker to confirm coverage, try a mobile signal booster, or contact O2 to report persistent issues. Thick walls and energy-saving windows often block mobile signals.
If O2 data stops working but calls work: Check your data allowance in My O2, ensure mobile data is enabled in settings, reset your APN settings (Settings > Mobile > Mobile Data Options), toggle airplane mode on/off, restart your phone. If issues persist, call O2 technical support.
To get your O2 PAC code: Text PAC to 65075 from your O2 phone (you'll receive it within 60 seconds), or log into My O2 and go to 'Thinking of leaving', or call 0344 809 0202. Your PAC is valid for 30 days. Give it to your new network to transfer your number.
High O2 bills are usually caused by: out-of-bundle data usage, premium rate calls, international calls, roaming charges, or added bolt-ons. Check your itemised bill in My O2, identify unexpected charges, then call 0344 809 0202 to dispute. O2 must explain all charges and can apply credits if errors are found.
If O2 calls keep dropping: Check network status for outages in your area, restart your phone, remove and reinsert your SIM, check for software updates, try your SIM in another phone to rule out device issues. If problems persist, report to O2 who may send a replacement SIM or investigate local mast issues.
Call O2 customer service and speak to an advisor who can answer all your questions about O2 services, billing, technical issues, and account management.
Call O2: 0344 809 0202