You still haven't confirmed it gave your correct number, which is crucial.
You have a hub 2???
There will be no-one fixing anything on Sunday or Monday. Earlist would be Tuesday.
2, I have just spoken to live chat and they ran test and said the fault is outside the property and someone is scheduled to fix it on Sunday
A broadband fault is something the line test cannot show.
Is it the new BT Smart Hub 2 that you have?
Please try the following.
factory reset the home hub.
Then turn Smart Setup off.
If you still do not get a connection, then
What does your master phone socket look like?