plz help

I am a Telkom business ADSL customer and I am loseing business because form the min line was installed on Friday I did it non-stop problems Fault 115CEK120416 the 1st fault that I did was close for no reson i need someone to come out and help asap. Becz its not my modom router tat is the problem because I did go to the telkom store and more then 3 times and they swap it out for a new one and did test it to and it worked fine at store BT when got home it didn't this problem is with the line and I am losing money because of this how do telkom expect me to pay them every month if my line is like this because I can't make money like this plz short this out asap my line number is ***