Regarding the answer you received "they want me to pay £60 to unlock an account".
Virgin Media Customer Support were pushing a third party IT support company that VM use. That was probably because they were under the impression the problem lies with your Microsoft Outlook software rather than VM's system. Just as well you rejected that idea!
Re "I just get an error message saying my account is locked"
Just to help trouble shoot what's going on it would be useful to see the full and complete error messages that you are getting when you try to send an email from Webmail and Outlook. I would expect them to be slightly different because Outlook and Webmail send emails via completely different routes and use different VM servers.
I am also intrigued when you say that you "can see my incoming emails" .when you access your webmail account.
Does that mean that you are still receiving VM emails? And are they coming in Outlook?
When VM lock an email account that blocks you from signing in to the webmail account and you get the "Mailbox unavailable" error. It also blocks you from receiving emails in Outlook until the account has been unlocked.
Finally, re the problem of Outlook messages popping up asking for your password all the time.
Until the problem with your VM email is sorted out, the simplest workaround is just to close Outlook down. If you have other non VM email addresses that you manage through Outlook you can just start up Outlook when you need to check those other emails. There are other workarounds but they involve changing settings in Outlook. Just closing Outlook when you are not using it is the simplest.
If you can post back the error messages that you get from Webmail and Outlook that would give more insight into what is really going on with your VM account.
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