Hey Yungwang, thanks for reaching out on our help forums and for your first post.
A warm welcome from us in the community.
We're sorry to hear of the landline issues after switching to VM and the problems this has caused to you.
We'd love to best help, allow us to explain when an install is complete and we have a number to port in we usually provide you with a temporary number until we can complete the porting and assign your old number on the line.
This also requires the number to be active by the supplier at the time of the porting process.
From the time the porting is initiated it may take 8-10 working days to complete, apologies for any confusion caused here as we'd advise on the days left for this depending on what date and time you called in to get this update.
Can you please tell us how long it's been since you switched to VM and have your services been activated now?
We'll be here to assist.
Adri - Forum Team
New around here?