Hi Mpk,
Thank you for reaching out to us in our community, welcome both here and to Virgin Media, when did you request for the number to be ported, this has to be requested once installed and normally takes 10 working days, you would need to keep the number active until we take it, this will cancel it for you, I will be more than happy to check is this has been put in place, I will send you an invite into a private chat, once received please click on the purple envelope to accept.
Regards
Paul.