bad service

My car was in an accident on the 01/06/2015 and I reported to the police and insurance on the same day.I filled all the forms and sent them back to them.They sent someone to check it and concluded that it was a write off.On the 7/07/2015 they sent an investigator to come view accident scene.Two months after sending the forms I called them to enquire about my claim then I was told that they sent me wrong forms.They sent another set of forms to fill and I did that.On the 15/08/20015 they sent me a message stating that my review was passed only waiting for the final review.I told them this thing is causing an inconvenience to me especially when it comes to my work.I'm trying to buy another car but the car dealers want a letter from my insurance stating when are they going to pay and they running around.I've lodged a complaint with ombudsman because I'm tired of running after these people.How can I trust them again after this treatment.