Bad Service from a vehicle service center Cartime PMB

<p>Hi </p> <p> </p> <p>Please help i had my service done on my vehcile afeter receiving the vehicle back from them, my vehicle now jerks all the time i called back with the problem and was told a whole long story now and that i need to pay to have my coil replaced my problem is my vehicle was running 100 percent when i gave it to them now they want me to pay for my vehicle to be repared Please help i dont have the money for this . </p>