Hi there JKSHEIKH,
I'm really sorry to hear that your phone line is not working, and I'd also like to welcome you to the forums.
I've taken a look at things, and can see that you've already spoken to our faults department, and have a technician booked to call out and investigate things for you.
Please let me know how this goes.
Apologies once again.
The do's and don'ts. Keep the community welcoming for all. Follow the house rules