Engine reconditioned yet problem from day one thereafter

We have bought 5 vehicles from Raceview motors and you served all vehicles however one bakkie to me a engine blew due to your neglagence, I paid 55k for reconditioned engine and long after repair it was 1st leaking oil which you then resolved and also started over heating, you said was water pump and part of that 55k no new parts was replaced as you only reconditioned engine, wow surely that price should cover all parts, now the bakkie is over heating again I emailed you stating vehicles is been towed in by towed company I get to your place and you closed luckily was early enough to open the RVM sales side, I want this bakkie engine sorted out properly RVM service department give extremely poor service in regards to vehicle maintenance, please resolve properly