Bad Customer Service

i've had an accident on the 6th December 2017 in my complex, whereby an Outsurance client's car rolled and hit and damaged my car and my carport. i've since submitted my claim to outsurance as a third party and nothing has been done. everytime i call i get told that the person who is handling my claim (Dumisani N****eni)from legal department is either on another line, busy on the line or on lunch. i always leave my numbers for him to call back and nothing. if this is how Outsurance treat people then im glad im not their client. i'm realy outranged because now my car is not fixed and i dont have a carport to park my car in especially in this hail storm we are expiriencing.