bad service by kia

i bought a car in 2017 July with kia silver lakes and the sales man didn't disclose full information regarding the car .....what makes me angry is I mentioned to him several times that it was my 1st car purchase and I didn't know much about cars he promised to help to his best abilities I was then at ease , last year towards the end of the year I asked him if my car has a service plan he then said no I referred to all documents they have me there was nowhere were is annotated that I have 2 services for free and that information was never disclosed ....now I had issues with my car indicators and hazards took in the car for repair and I was told that since I didn't use kia to service the car I need to first pay them 1961.30 first before they can fix the car when I queried with stiaan he told me he will get me a discount to which of the discount was 61.30 and I need to pay 1900.00 to fix the car...it really puzzles me why such important information was never disclosed even when I asked he never cared to check the information now I have to pay for something that isn't my fault and no one cares to assist with the complaint