Originally Posted by
LondonAndy
You don't by any chance have a Household Account do you? I got e-mails for my children today, which were addressed to Miss and Mstr LondonAndy......
Have to go, another 500 e-mails to deal with on GDPR

I think that is a likely explanation - the same happened to me and caught me my surprise initially as the kid's account emails (for which I am the contact email) arrived first. So not quite the IT failure that it appeared.
Regards, PR