Poor customer service and bad quality car

I bought the car and my entire deal was a mess the sales person rushed me to sighn at 5 o clock as she wanted to leave promised all was in place .first of all she got my race wrong put me up as a black person and i am white, my addess was wrong and after having meetings with managers and the bank in theirboffive it is still wrong priceon contract was wrong do they added an extra year fir me to pay the breaks was screaming within the first 2000km i took it back and they told me that my car was part of a batch that came out with faulty brakes they replaced it i am at 44000km now and it is still screaming and making a lot of noice i took it baxk and they said it is normal to make do much noice my window gotbstuck they fixed it and a week later i sit with the same problem my key card battery had to be replaced last year november and today the warning light came on again that the battery is low i am so unhappy with this suppost to be fairly new car with only 44000km on and to top it all our sales agent did not add the motorplan we requiered so we were only covered up to 30 000km they have loaded the price so badly that it is almost equal to a brand new car of 2026 after service is poor and attention to detail very poor as they messedcup my deal and now it is my problem dont know what to do