Paying for the car i don't have with me

I purchased a Hyundai Grand I10 2017 model in October 2021. I noticed it was using a lot of oil and fuel which is something I reported and made clear to the dealer that i didn't want to keep the caras i scared it will give me more problems. That was in January 2022. They promised to look for another car while they were also busy fixing this one. And i was later offered a courtesy car ehich i feel was only to bribe me to keep the I10. It was taken to Maemo motorto be fixed for 4 months and i still continued to pay my installment normally. The car came back in May 2022 and i was asked to keep it while they look for another car to replace this one, which is what they have been doing since February with no success. I believe they are just buying time so that i reach a year with this car and they won't take it back. Just a day ago i discovered another problem with the car but this time i took it back to them and told the Dealer Principal i was not going to keep that car.

I have been up and down with this company and nothing is working out. He even told me i can go to the Ombudsman, like he doesn't care. Someone please come to my rescue,i am sitting without a car i am paying for