You are wrong.   From the same link: There are two different types of process for switching broadband - 'gaining provider led' and 'cease and re-provide'. Which process you follow largely depends on what provider you're switching to and from and the ...

That contract and service is between you and BT. It has nothing to do with VM. Once VM have the number, and contract with you for that number, only then does it become VMs responsibility. If the port failed (why did it fail? Did BT block it?) then yo...