Not happy with service

I had an accident on the 17 Feb, which was completely not in my control. My car must have hit an oil patch or water puddle and then wobbled out of control and hit a barrier. King price have not been that great in providing feedback, i have had to phone them each time in order to get feedback, of which they keep telling me it's still in process. After 7 days i get a call from Hein Venter requesting that i send an NCB form from my previous insurance which further delayed the process. Finally on Monday 29/02 i get the form from bidvest and forward it on to Hein. I am now feeling a little better, knowing that the claim is finally on the move. Well to my disappointment i get a response from Hein asking me to send the NCB form from my insurance prior to bidvest. Why couldn't this have been communicated with me on the day that i made my initial call? when the NCB form was requested from bidvest then i could have been informed that i need the form from other insurance company's as well In order to avoid the delay. Never in my life have i had to struggle with an insurance claim like this. i am not happy with king price