General Radiator Sold me a radiator for a tractor trailer that leaked in 5 months and would not refund my money West Memphis Arkansas

I purchased a radiator from General Radiator located in Chicago,Il.on 11/22/2016 for my 2004 Freighterliner.I received the raidiator a week later i paid $750 for the radiator had it installed and 5 months later it started leaking,i contacted General Radiator i was told to send it back,i told them to send me a replacement i was told that they could not do that because they were afarid they would not receive the leaking radiator.I asked for my money back and was told that was not going to happen.I was tolld by one of the sales reps.named Mike that he would sell me another one for $4oo dollars.So in order to continue to work i had to purchase another radiator from another dealer.