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O2 Mobile Customer FAQ

Top Answers & How-to Guides

What is O2 Mobile's Phone Number?

The question we are asked most often is about how to talk to O2 Mobile customer service. Click here for contact information, email and chat options, getting a live person, wait times and more.

How do I check my data usage?

To monitor data usage with O2 Mobile, customers can log into their online account on the O2 website, use the O2 app on their...

Can I keep my current phone number when switching to O2?

Yes, customers can keep their existing phone number when switching to O2 through a process known as number portability. This...
Ask any question you have about O2 Mobile customer service, get an answer now.

Recent O2 Mobile Customer Questions

How do I top up mobile from abroad

To top up your O2 mobile from abroad, you can use the O2 app or the O2 website. Log in to your account and navigate to the top-up section. You'll typically need a credit or debit card that is accepted for international transactions. Alternatively, you may use a third-party service that allows you to top up mobile accounts internationally. Ensure you're aware of any fees that may apply for these transactions.
Asked Jul 9, 2025 7:05 AM

how do i contact 02 via the internet

There is a link to the most up-to-date contact information right here on this page that you are viewing.
Asked Sep 12, 2024 11:55 AM

my contract is ended and I need a pac number to transfer my number but I don't have my sim card

You can request a PAC (Porting Authorization Code) number even if you don't have your SIM card. Usually, you can do this by contacting us through our website. There’s a link to the most up-to-date contact information right here on this page that you are viewing.
Asked Sep 12, 2024 11:48 AM

Roaming abroad no internet all weekend

We're sorry to hear about your internet issue while abroad. With O2 Mobile, your device should automatically connect to a local network when you arrive overseas. If this doesn't happen, you can manually search and select a network from your device's settings. Connectivity, however, depends on the roaming agreements we have with foreign networks. Also, make sure that your "Data Roaming" feature is activated in your mobile settings. Keep in mind that paying for data depends on your tariff and the country you're in. If you're still having trouble, you should get the most up-to-date help by clicking the support link right here on this page that you are viewing.
Asked May 1, 2024 4:48 PM

My iPhone hotspot is not connecting to my iPad. Have had it 4yrs with no issues.

This sounds like it might be a device-specific issue, rather than a problem with O2 Mobile's service. However, you may try some general fixes. Start by confirming your mobile data is active and that you have enough data allowance. Next, check if the hotspot is activated in your iPhone's settings. If it is and you're still having issues, try resetting network settings on both your iPhone and iPad through Settings > General > Reset > Reset Network Settings. Be aware that this will also remove your Wi-Fi networks and passwords, cellular settings, and VPN and APN settings you've used before. Then, try reconnecting the devices. If the problem persists, it might be best to contact Apple support or take your devices to a nearby Apple store.
Asked Apr 29, 2024 11:12 AM

Help me with my O2 Mobile customer service issue

Account Management

How do I check my data usage?

To monitor data usage with O2 Mobile, customers can log into their online account on the O2 website, use the O2 app on their...

Can I keep my current phone number when switching to O2?

Yes, customers can keep their existing phone number when switching to O2 through a process known as number portability. This...

Can I port my number from another network to O2?

Yes, it is indeed feasible to transfer your number from a different network to O2 by obtaining a PAC code from your current...

What should I know before switching to an O2 mobile plan?

Before switching to an O2 mobile plan, consider your usage habits, O2's network coverage in your area, available features like...

What should I do if I lose my O2 SIM card?

If an O2 SIM card is lost, first check to confirm it is really missing. If confirmed, block the SIM via the O2 website or app...

Roaming and Travel

Can I use my O2 mobile plan abroad?

O2 Mobile allows customers to use their plans abroad, particularly in EU countries under the "Roaming Like At Home" policy,...

What are the international roaming charges for O2 customers?

O2 Mobile has different international roaming rates based on customer plans, organized into zones. Zone 1, covering Europe,...

Service Issues

Can I use O2's network for tethering or hotspot?

O2 Mobile permits tethering and mobile hotspot usage, allowing customers to share data with other devices. However, this...

How do I manage my data settings on my O2 mobile phone?

To manage data settings on an O2 mobile device, access the settings menu, locate "Network" or "Connections", and adjust mobile...

What should I do if I have a problem with my O2 service?

If experiencing issues with O2 service, start by identifying the problem, whether it's network-related or billing. The O2...

Top Up and Insurance

How do I top up my O2 prepaid account?

Topping up an O2 prepaid account is simple and can be done via vouchers, debit or credit cards online, or the My O2 app. Users...

What insurance options are available for O2 devices?

O2 Mobile provides various insurance options for devices, including O2 Device Insurance, which covers theft, accidental damage,...

Plans and Upgrades

Are there any loyalty rewards programs for O2 customers?

O2 Mobile provides a loyalty program called O2 Priority, which offers customers exclusive rewards such as discounts, early...

Can I upgrade my phone with O2?

O2 allows customers to upgrade their phones at specific points in their contract, typically halfway through. They offer various...

Are there any family plans available with O2?

O2 Mobile provides various options for families, including multi-line plans with discounts and shared data allowances. Families...
We look to the O2 Mobile issues that customers have reported to GetHuman to decide which questions are the most common and how much time to spend researching how to solve them.
O2 Mobile issues reported to GetHuman
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