Hi Graham,
Thank you for your time by responding to my query. I am confused over the difference between Virgin Media email and the Accounts I have with them. Your information seems to refer to an 'App password' for Virgin Media email which I do not use. Instead I use and have been using for a long time 3 other accounts. Account1@ntlworld.com, Account2@ ntlworld.com and Account3@ ntlworld.com. Account 1 and 2 are working fine on all devices for the individuals concerned. My problem is trying to find the right password for Account3 for use of the new MacBook Air. Account3 works fine on the old laptop and the individuals iPhone. I sign on to My Virgin Media using a separate email address and password. from there I can view my account details etc and the three accounts listed above. Two of which have the following warning: "The entered credential or authentication information does not work or are no longer accepted by provider. Please change them." I try to and it rejects my attempts!! Thanks for listening, maybe I will go and lie down in a dark room for a while and hope something comes to me!!!🤣