Thanks for coming back to us @milajayne, you can use any email address to register for My Virgin Media but if you want to use the same email that previously used, when you last had our services with us, I can get this removed from the system for you with help from our IT support team. We would need to take a few details via private message, if you want to do this, please let me know and I will send a private message over.
Regards,
Steven_L