NHTSA Complaint #11568088 — 2018 KIA OPTIMA

I have had this car in the shop multiple times for a engine light that kept coming on, they would reset and say they couldn't see anything wrong. Well my car died in Dec, it made a noise and would not accelerate. To avoid any further issues I parked it and had it towed to a dealership. They told me the catalytic converter had come apart taking out the turbo and it would cost me $6k to fix. I decided to see if i could find parts cheaper, to find no one anywhere in the US or Canada has a converter for this car and it seems many dealerships have customers on waiting lists to get one, so I am now wondering if this is in fact a pretty large problem Kia is not addressing. I called Kia and got a very canned answer that parts were hard to come by right now and it could be up to 2 years to get the part. So I am now paying for a car i cannot drive and have no idea at this point if I will ever be able to drive it. i am hoping you are able to do some research to see if this is a bigger problem that nobody seems to be talking about. thank you