My bill

[Customer2]

I want to reach head office by email or preferably by phone to make a complaint. Can anyone advise a contact number or address which is best to reach them on ?
Thank you

[Cleoriff · Accepted solution]

@Customer2 

If you want to make a complaint then follow the process here https://www.o2.co.uk/how-to-complain 

[Customer2]

Thank you 🙂

[Cleoriff]

No problem @Customer2