You might find one of the 'Sat1' or 'Sat2' connections can be reconfigured to become your VM connection. There may be a VM cable behind the blanking plate on the LHS of the faceplate which needs connecting to a VM faceplate module by a VM tech.
If you have a central comm's cupboard in your building (where VM services arrive to the building), a common issue reported on here with getting VM installed is often to do with the VM tech gaining access to that (often locked) comm's cupboard to make the connections. You could maybe make an enquiry with your building management to see if they know anything about that and how VM is distributed in your building.
If VM's postcode checker shows your flat address is serviceable then you could place a VM order, but the usual advice on here (if feasible to do so) is to keep your BT connection running until VM is set up and running to your satisfaction. That way you won't be left without broadband if the VM installation runs into a problem and delay for any reason.