Problematic car

Hi good Day I bought a Car from Auto Pedigree in Bellville Cindy Moosa was the sales person... Since day one when I bought the car I've been having problems on the car... I asked them to sort out the problems but they refuse or take long to respond to my emails and massages their client service is bad since day one, after they send the car to their auto centre I still received the car with problems on it... I asked them to cancell or give me something else they refuse... I'm paying for something wich is not 100% in working process and wich is not what i wanted since day one... I would like to know what must i do because I dropped the car by them but I'm still paying for it.... Please I would love some feedback thank you...

Andrew Louw ***)