Momentum Courtesy Car Policy a disadvantage

My car was in accident in December close to the time of shutdown. The body repair started to order parts late January and later they worked on the car but additional authorization was needed which took two and half weeks. Now another authorization for other parts was requested and that means parts still need to be ordered again this means my car will be with the repairs longer.

Ever since the 8th of January I have been without a car nor a courtesy car because the insurance says their policy is only for 30 days and should the body repair shop delay because of parts its not their problem which is a serious disadvantage because some cars all their parts are imports like my Renault Duster.

I have appealed to my insurance for a courtesy car as I have had to hire one myself for this period but my request has not been considered even now with this new request for additional parts I must still wait.