Service down for month and a half, phoned 13 times each time an excuse

On the 23rd of August we logged the fault. Since then I have phoned over 13 times. First the fault was waiting to be assigned to a technician then they had to get way leave then they said they havent started work cause they are waiting for materials. There is just no winning. I am being passed from department to department and even the manager's dont get back to me. I am not saying this to smear anyone's name WE JUST WANT THE FAULT FIXED.