SWAK Service and Lying to client

I bought a Opel Mokka in May. The device light soon light was on from day one until the 1st service. It couldn't beens solved due to an after market product was installed even before I took ownership of the car so i had to get it removed by the installers who is subcontracted by Le Roux Motors. <br> They done a half a job and waisted 4 hours of my day whereby i lost money due to this, no one wants to pay me for it.<br> eventually after a fight to get a curtesy car i left the dealership, they phoned me to say it is fixed. so i asked if the anti-highjack was refitted and they said no and that they will get it done so i then need to wait until they phone me again to fetch the car, this all was yesterday. This morning Le Roux Motors phoned me to say that my car is ready. I fetched my car, but yet the anti-highjack was not fitted and the dealership just say that their subcontractor is to busy and can only do it in January. This is not fair so I now need to loose more money and more time. <br> on who's account will this all be? <br> I need answers ASAP.