If you are after an O2 phone number then there is good news for you as you can find the phone number for different companies and organizations online with the help of third-party websites like contact helpline. If you have tried your luck in browsing through the O2 official website but you failed to get the right O2 Phone Number through which you could get in touch with them then you may be able to benefit from contact helpline as they have done the needful on your behalf to make it possible for you to quickly access phone numbers of larger companies and organisations including O2.
There are many reasons why O2 may not provide phone numbers through which you could get in touch with them on their website or even through any of the publications that they may send out to you given that you may be their existing customer who they would choose to communicate with on a regular basis. One of the reasons is that, just like many service businesses do, O2 would also prefer to communicate with their clients in writing. And these days most service businesses have an online ticketing system whereby you could submit any problems you may have with your device or any other issues you might have with the service provided by them.