@R-o-b
They are asking you to confirm it, not asking what it is.
Confirmation is required for services signed up to by someone using your email.
If you haven't registered on any wifi hotspots, just ignore it, but if you have, you need to click the link in the email to confirm the email address given is correct.
I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion. This is not Customer Service so we are unable to help with account specific issues.
Please select the post that helped you best and mark as the solution. This helps other members in resolving their issues faster. Thank you.
