The service guy has actually told that line is not proper and should be splited, but he never does. Once, I just wanted internet fixed and he didn't have enough time to do anything else so left it. Once when we both had time but he immediately got a phone call that he cut the wrong line(he was supposed to cut 75's line and disconnected 76's)! This made him leave that job again. Few more similar stories, the line never changed. As I told earlier, their service is pathetic so didn't dare to call them again, and let it be as it is.
Here's one incidence with someone who picked up my phone when I wanted to complain about net not working:
Me: Net's not working.
He: Have you made any changes in modem?
Me: Nope. Nothing.
He: In windows then?
Me: Nope. It doesn't even work in Linux.
He: That's the reason sir! Linux is a virus!
Format your
windows! Net won't work with it.
I still want to meet this genius and salute him.