Hello Hiten_M
Sorry to hear of the initial email issues experienced and problems since removing from the iPhone, we appreciate you taking the time to raise this via the forums.
We can see you have sent a PM to one of my colleagues, this doesn't look to have been requested by my colleague or invited for a Private Message.
In regards to the email issues, we have help here on how to set this up via a mobile device. Can you confirm if the same login details allow access via other devices or a browser? Each email app is slightly different, but to set them up you need the right email server settings and your Virgin Media email address and Virgin Media Mail app password.
IMAP settings (recommended)
Host name: imap.virginmedia.com
Username: your full Virgin Media email address
Password: your Virgin Media email app password
Advanced settings SSL encryption: Enabled
Port: 993 (this may be automatically chosen by selecting SSL encryption)
Try these and let us know if they help resolve the issue.