Hi jan19512003
I'm more than happy to help you further through the community forums if you wish to raise a complaint regarding this, just wanted to ensure that your landline was working with the new number you have and that you were aware of how you can find out the number should you still not know what it was.
If you'd like me to assist in raising your complaint and investigate this further, please join me on private message so I can locate your account and pass account security. You can see your private messages at the top of the page, in the envelope icon or if you're using a smaller device, you can see your private messages by clicking on the Virgin Media logo at the top right and select 'Messages' from the drop down.