Just had an email from firstname.lastname@example.org & wondered if it was legit, It's an Invitation to take part in a trial funnily enough. I have taken part in trials previously but never received an email from that address.
The email address is genuine, and I can confirm it's from Virgin Media.
Just so I can put your mind at rest further though, would you mind please confirming the details of the email? You don't need to screenshot the email but just a quick message on the topic would be great.