If you are after O2 phone number so you can get in touch with them then there are many ways that you could go ahead with the same however it would be important for you to know that it is not as easy as you might have thought to get the right O2 phone number. This is because larger organizations do not provide a customer service phone number. This is probably because they would like you to contact them through email or through a special ticketing system which is the norm these days for service businesses.
This is because a number of things go into responding to customer inquiries and sometimes when the inquiries are technical in nature it just becomes difficult for the one answering your call to be able to quickly and immediately offer you a solution that you could be happy with. This is why they prefer email communication. However, if you really must contact O2 over the phone then you can find their phone number through a few different ways. The easiest way for you to find O2 Phone Number would be through websites like contact helpline who have done all the hard work for you in gathering all appropriate company phone numbers that you might be after from time to time.