Bad service and Mean Treatment

So my insurance company took my car to Renew-it Bedfordview for repairs, I got a call from them telling me my car is ready for collection, only to find out that's not true when I arrived after organizing someone to accompany me and taking time off from work. I was calm and understood their mistake, but as if that's not enough I get my car after the repairs were completed then realize there is a missing wheel sensor on the wheel they were repairing. I tried to contact them so they can sort it out, every time I call I am told one of the consultants will call me back but they never did until they received the call from my insurer. I took the car there and the consultant by the name of Daniela was very rude towards me. She just made me wait for over1h30 minutes without checking on me and when I ask for her she looks at me as if she doesn't even know why I am looking for her. When I try to explain the bad service I received from her she tells me that's nothing she can be rude to me if she wants. She even demanded that I must just give her my car keys and go home, and that she won't answer me as to whether my car will be ready today or not. I felt so belittled by her treatment towards, it was as if they were doing me a favour for fixing my car and that I am not a paying clients nor one of their important clients