Air Condition

I took my car in for air conditioner inspection . They quoted me a price ,also had a coupon. So I told them to do the repair. The mechanic(JAMES) Said I needed a part. I ask How Long that the part would arrive?This is where everything went down hill. He said 2 hrs So I agreed Thinking the part would fix my car. After 4 HOURS I was informed it was fixed I could drive my car .My bill was $34.99 - $30.00 COUPON. Also $ 583.20. Ipaid for the services and left on my way to Detroit to visit my family. I was on the road still in Ohio it started blowing out hot air.When arriving in Detroit I went to a Firestone there.When there the tech (Richard) said I would need to replace the AB compressor and clutchCost additional $501.06.So NOT EVEN 3 HOURS THE AIR CONDITIONER IS BROKE AFTER i JUST PAID 2 HAVE IT FIXED IN OHIO. I WANT MY CAR FIXED. Toni Banks