poor workmanship caused damaged to my car window

<br> I had a claim for a my car window that was broken during a break in on 28/11/2015. I phoned the insurance to lodge a claim, and was told by Thulani that they would need 2 quotations. Glass fit informed me that the only quality and original glass for my car is only obtainable from the dealer being Renault. My quote from Renault was than send to the insurance but they got another quote from Eagle Auto Glass of which was authorised by the insurance (who installed a glass with their trademark on), despite the fact that my preferred quote was Renault as they are the manufacturers of the original glass, my car know have this different glass on, not only is the glass not original but now the remote mechanism is also not operable. The opening and closing of the window now works manually. however I have to press and press and press the window before its properly opened or closed. I have send various mails to Thulani, as well as [Email Removed] and [Email Removed] the claim no. CL***. I am devastated that my car is damaged by the same people by whom its insured due to a cheaper quote. <br> please help.