Awful customer service

I had a motor vehicle accident 2 weeks back ,the panel beater M &R coachwork has my vehicle for more than 2 weeks with no progress. I wanted to use my own panel beater but the agent did not allow us to choose this option. When I complained about it ,it seems as if outsurance don't value me as a client and seems to be protecting the panel shop . No calls back as promised I have always had good experiences with outsurance but I am seriously thinking of taking my business elsewhere where the customer who pays their monthly premiums are VALUED. OUTSURANCE has totally disappointed me and I will tell everyone of this bad experience My issue is still not resolved