Thermostat and radiator repair

I took car in to be repaired on the morning of Friday September 8, 2017, to get my thermostat and radiator replaced. I pick my car up later that evening, drove home, parked car until the next day. September 9, 2017, while I was driving my car, The engine light came on inside my vehicle and you start to drive a little funny so I took my car home waited until Monday to take my car back to the shop by that time my car overheated, The motor seized up and my head gasket was blown. The antifreeze that they put in my car leaked out and that's what caused the problem because it didn't have no coolant and they are trying to blame me for what had happened to my car. My car has never overheated before and that was the reason I bought in for. This company refuse to give me my old car parts or try to fix what they didn't.