Horrible vehicle claim experience

I was involved in an accident 1st of March , my car was towed and then the claim was authorized on the 25 March and authorization was supposed to be send to the repaired , 2 weeks later I call the repairer to check on how far the repairs were to my Suprise the car was not with them I called 1st for women and they apologized and said that the delay was on their side then they extended car hire , again the following 2 weeks I call the repairer same thing happen no car promised the authorization will be sent this happened until April was gone and 2 weeks into May no one at first for women called me the whole I had to call them and they apologize and a false promised be made. Last week. I called on the 12 May same story and I vented my frustration finally on the 13 they send the authorization. After all the emotional and mental frustration, they put me they suddenly give me 7 days for the courtesy car how can a vehicle damaged like that be fixed within 7days, the repairer says estimated the 10 June 1st for women says take the car back the 22nd. This so unprofessional and frustrating after I had to fight for almost 2 moths for an authorization to be sent now, they want me to be frustrated and stay without a car. This is treating the client unfairly they never call back to update don't care about anything. I am so disappointed in them, I must go through an accident trauma, then be traumatized by running around to get my authorization sent then be stranded by unfairly being treated by not having a vehicle.