POOR SERVICE

I have never had such a bad experience, on the 25/08/2017 my husband took my car for major service, my car had a EPC light on and dint have power, besides that my car was fine. when i fetched my car on Friday there was nothing wrong on Saturday the car smoked. on Monday i called to find out what is wrong with my car some Linzi lady spoke non sense over the phone saying i brought a car without oil, refused to give me the managers number said she doesn't see anything wrong with driving a smoking car. if i can not speak to the manager who should assist me, my car was not smoking when i took it there she told me i need to purchase a part in order for my car not to smoke. why should it be off my expense to purchase that art where as my car didn't go there smoking. i will not refer anyone to that place no customer service whats so ever PATHETIC SERVICE