Orders being confirmed is not really the issue , assuming the address you pick is correct, the background checks identify that the line is already in use , that could be because someone else has incorrect data in the system
An example ,Mrs Smith is customer in flat 1 , prefers flat 2 so when it becomes vacant arranges a local move into flat 2, but the ‘phone’ order never done correctly , the data still shows her in flat 1 , but she lives in flat 2,
someone new moves into the now vacant flat 1 , orders service from a provider, it may even be the same provider as Mrs Smith , the background system still shows Mrs Smith in flat 1 , so she gets a letter or email from her provider saying someone wants to take her service over , it doesn’t necessarily say the flat number , or even if it does , it makes no difference she is worried her service will stop so she calls her provider and says ‘I never asked for this , get this order cancelled ’ her provider cancels the order for flat 1 from whatever company raised it , the new occupant of flat 1 wonders why their order has been cancelled if the flat was empty and they definitely picked the correct flat, raises a new order, Mrs Smith gets a second letter/email , responds in the same way , although a little frustrated thinks they have already told them this already.
Its not just you picking the correct or incorrect address that can cause orders to fail.
As I said , I’m not saying this is the issue , just that multiple dwelling units can be complicated, and it’s not necessarily obvious why orders are cancelled, as with many ‘complaints’ posted on here , the details are not offered initially, but when asking questions, it soon becomes clear that it’s not as simple as they imply.
