Good Morning @molehole, thanks for your post on our Community Forums, and a very warm welcome to you!
Sorry to hear of the issues you're having with the E-Mail account
Are you possibly able to answer the question posted by @m00g?
If you have access to the E-Mail account via a third party client, on the laptop and phone, and it is as predicted related to a former Virgin Media subscription, it may be wise to start forwarding any important E-Mails to a new E-Mail account to ensure they're not lost.
Kindest regards,
David_Bn