Hello,
I'm having the same issue. I haven't been able to get into my mailbox since Friday afternoon. I left it until today in the hope that whatever is causing it would resolve itself over a day or two, but it's still happening and I keep getting the message:
Your mailbox is not available at the moment.
Please retry again in one hour and make sure you are using the correct password to access your email from all of your devices.
If the problem continues, please call our team for help on 150 from a Virgin Media phone or mobile, or 0345 454 1111 from any other phone and select option 2. For details about how much it costs to call our team from a Virgin Media home phone, visit virginmedia.com/callcosts. Call costs from other networks and mobiles vary.
But if I ring 150, there's no way to get to anything about the mailbox. And the web "help" also doesn't have this and takes me round and round in circles.
I'd appreciate some help, please (not least because I need to make sure a message I sent on Friday to confirm an appointment was actually sent).
Thanks
Patricia