We have put together a short survey to capture your feedback in terms of what BT can do when you experience home Wi-Fi issues. We would appreciate it if you could take a couple of minutes to complete a short survey. Read more from here, Fix my home Wi-Fi
I can't seem to find an answer to this anywhere on the BT website.
I understand they can agree a time after ordering, but I need to know roughly how soon it can be before I place the order.