O2

Does anyone have any tips to ensure a complaint email is actually responded to please? I’ve emailed the correct email twice and had an auto response saying they aim to reply within 7 working days (so know I’ve got the right email) and then nothing. S...

Hello I am an existing O2 customer and bought a new contract with O2 via a third party (significantly cheaper than upgrading). The result is that I have an old and new number. I want to keep my old number and was told this was possible and would be d...