If so they need to tell their provider to cease the service, so your new order can go through.
When do they do that? Surely they'll want their connection to continue up till leaving day? So the new occupant cannot order their connection until moving-in day with the resultant delay (15 days?) while it is provisioned and installed.
I have an instance with just an EE House Move, which they say will be EEasy
, where they are refusing to even take the order for the house move until the BB at the new house is ceased.
1999: Freeserve 48K Dial-Up => 2005: Wanadoo 1 Meg BB => 2007: Orange 2 Meg BB => 2008: Orange 8 Meg LLU => 2010: Orange 16 Meg LLU => 2011: Orange 20 Meg WBC