Thanks for your post and I'm really sorry to hear the landline is down again for you.
I'd like to run some checks and get this sorted for you but I'm having some trouble locating your account details. I will send you a private message shortly (purple envelope top right) so we can discuss this issues further.
I've managed to run a check on your landline and have located a fault in your area. The fault reference for this is listed as F004279774 and our system shows an engineer is on his way to resolve this. The estimated fix time for this is 13:40 today but this may get pushed back depending on the extent of the problem.
My sincere apologies for any inconvenience caused and if you need any further assistance please get back to us.