Poor Customer Service : Refund required

I have purchased a radiator from Midas in Chatsworth , thereafter went to a reputable radiator Centre to have it installed into my vehicle, A Few hours after the installation of the radiator was done, I experienced some heating problems with the car an took the vehicle back to the radiator Centre for a test an found a problem with the radiator. I had the radiator removed from the vehicle to return to Midas an I was told by the salesman that It cannot be replaced with another radiator because it falls under warranty with the factory and they will send it in. In that time I purchased a second radiator because I needed to have my car mobile an waited for feedback from the salesman with regards to the first radiator , Two weeks later after no feedback I went back to Midas to find out what was going on with the Radiator an was told that it was checked by the factory an the claim was rejected an was told that I could take that radiator for repairs on my own. Does it seem fair to the consumer? I seek assistance with a refund in full for the damaged component purchased from that store.