unhappy customer

I took an insurance with momentum for my car in 2019. for my personal use the consultant who i spoke to when I took this insurance I did mention to him that the car will be driven by me and my son. which he did request copy of my son of which we did send to him . now my car was involve in the accident my son was driving it. now momentum is giving me a headache with the claim taking me from pillar to post this accident happened this month . momentum now is telling me that my son was not included to the claim .my car has been towed and been the company renew-it two weeks now . my problem is that i my only car I'm using even to take my child to college we using taxis which is a problem to me. I never had any claim . And i never had any notification that i belong to momentum I took insurance with ALEXANDER FORBES so I need my insurance with them as from inception date. I have been calling them today their call center is disgrace from 10.am until 11.50 phone just went dead .my policy number 350\902567.