Opel Corsa OPC Radiator burst

I bought an corsa OPC 2011 with 74000km on the clock on the 1st of July 2015 where I took delivery 3 weeks later cause they were still busy fixing everything that was wrong on the car. It went through the G2 114 Point check where they ticked everything is correct. But i still got the car with a loose bumper and side skirting that was damaged bad and no parking lights and some more faults.Got prove in all the mails I sent. I phoned Fury Hyde Park and they told me I can service my car at any RMI workshop. So I got my car serviced at an RMI dealer at 75000km. Then December on holiday in KZN my radiator burst which popped my head gasket at 80000km.Car standing in Vryheid ever since.Now Manufacturing warranty doesn't want to pay due to the car was not serviced at an OPEL dealership. R86000 Where Fury told me I could service it at any RMI workshop. Extended warranty will also not pay. Fury Hyde Park can not do anything for me. They sold me a car that had alot of problems from day one. Radiator burst due to a weak radiator in all OPCS. MANUFACTURING FAULT not the service garage who serviced it. Opel SA just told me sorry they can do nothing. I will fight this to the end.