Hi Semaphore,
Welcome to the community and thank you for posting.
I am very sorry to hear of the issues you have been experiencing with your landline service and the delay with the appointment.
I would be happy to check the appointment from our side and confirm the date it is booked in to.
To do this, I will just need to take a few details so I will pop you over a private message and this will be available via the purple envelope on the top right of this page.
Thank you,
Nat