Was rejected 135000km service cause I skip the 120000km

My name is Ismael da silva. I would not recommend mother finance to anyone. They *****ing my money. I've joined them five months now. And these month I had to take my car for 135000km service. And I was told by Mark Hutchinson who works for mother finance . That I can not be help. How the hell do you pay for something at end they tell you they can't help. What about my money. It's like they keep on doing these to people and then *****ing there money. All I want is my money back. At least I will be able to service my car. Still at the dealer. For what I've paid for these five months. I told them I've service my own car at 120000km. Had no money to book it by the dealership cause I was retrench. So I don't know will mother finance keep *****ing peoples money