The same thing happened to me. last week my blueyonder email address stopped working. It is our main email address and a few days later, my husbands secondary email stopped too.  We have spent hours on the phone to customer service, retention dept, tech support. VM want me to join homework’s at £9.99 per month to fix it. Each email sent to me by VM is AI generated and is at my wits end. I’ll keeP trying to, as I now have the name of the customer service director Alan Scott, based in Manchester. I suggest everyone with a similar experience contact him.