Hyundai the Glen

I bought a Hyundai grand i10 2014 model 2nd hand in 2016. I have been driving the car with no issue, until my gears stop shifting and I took it in to be told that I need to replace my entire clutch. Which I paid 8k for. Got the car back within 10000ks the clutch started giving me problems, still under warranty I took it back to Hyundai the Glen cause that's where I got it fixed. They claimed to have fixed it, two weeks later the car started with the same problem again. I don't know if their parts aren't genuine or they just being cruel. The car still not fixed, still not shifting into gears. I'm incredibly disappointed because this takes up my time at work, bringing in the car 3 times for the same problem?! I'll be contacting the National Consumer about this. I have had enough...