faulty car

I recently purchased a car and a Guy who assisted me is MASHudu from pedigree maponya mall,we found a car in KIA kempto park it is a kia pi canto 2013.<br> I then after two week found out that there is a problem with the fuel gauge it always on half tank and on 5.2 lt even if i pour a full tank .i them took it to kia to check it out ,they keept it for two day and said they will do a full service ,to my surprise the service needs to be done when the car is 12000 km,<br> when i bought the car in last week of DEC it was 95000 km but im surprised at the reading I'm getting already its on 114000 km but i travel from Orlando to Auckland park only.the far distance i went to was tembisa ,was never out of gp.<br> my consent is im a first time buyer and i dont want problems with the car i just bought now,it not even a month but it giving me lots problem ,<br> im unhappy with the service i got after i bought the car ,im afraid im got have problems with the computer box in the future so i want the car to be taken back to kia,and they musy give me other car which is in good condition on 95000 km or less with the same instalment or less.<br> i need other non faulty car please.its a pain to me ,assist please