Terrible Service EXTREMELY

Three months since my vehicle has been with Renew IT. Today when I am supposed to collect it, they tell me that they are going to request a third authorization from the insurance. I now suspect they are milking the insurance company at my expense. First assessment and authorization was done when they were supposed to hand over the car they said they missed some things. Second assessment and request for authorization was done and approved by the insurance and now today they tell me that on the two previous assessments and authorizations they could not pick some defects. They promised to give a courtesy car last week Friday because the delay in getting my car back is not my fault but their shoddy inspection expertise, however they are also giving me a runabout even with that. I request my 100% fixed car back tomorrow. Alternatively I should be given a courtesy vehicle as promised by their Manager, if I am not mistaken her name is Carin who is a superior to Charlene. She promised to come back to me about the courtesy car at 17hrs today like she did last week Friday, however as I am writing this complaint she never had the decency to come back to me. Can Hello Peter please assist me with this extremely terrible service