Hi,
We're aware of an issue relating to the registration of a new online Virgin Media account. When entering your email, an error DEF01 occurs. We have asked our Support Team to investigate and we apologise for the inconvenience caused.
Regards,
ModTeam
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Edit - This has now been resolved. If you're still experiencing problems, please let us know which link you're having problems with (https://www.virginmedia.com/my-virgin-media/register or https://my.virginmedia.com/create-profile/register)