hyundai SA

I own a hyundai i20 which was bought brand new in 2013 from hyundai ptn and from the time i bought it, its has gone many times to the hyundai workshop for repairs my gear box has been opened twice but the problem is not fixed it actually got worse I was told it was a common noise that all hyundai's vehicle have wen releasing the clutch now there is a humming sound coming from my gear box some times my gears get stick and grinds wen being selected recently my engine mounting broke and my vehicle sat for a week at the workshop without a courtesy vehicle, I taught I will have piece of mind buying a new vehicle but I am so disappointed I just want to trade it in and get another car