Welcome to the community!
Receiving an email about an account of which you are not aware can certainly be unsettling. Unfortunately, your image is not showing to us. Are you able to discern whether it is actually from Fido? Scammers can be very tricky in their attempts to deceive us these days.
You should note that this forum is community-driven and not intended as a venue for customer services. As such, we would not be able to verify any email for you. You would need to contact customer service to see if they can verify whether that particular email is indeed from Fido. In addition, they can also be contacted via Live Chat, Facebook, or Twitter. Those methods can be accessed via the contact page posted above.
Hope this helps 😀