Hyundai Motor India — ECM Repair i20 magna

Address: Arumbakkam, Chennai

I own an i20 Magna purchased in 2010 at Express Hyundai Chennai. I think this has now been renamed or taken over by Kun Hyundai. I do my regular service at Kun Hyundai Arumbakkam. Around Feb 2020 when I was driving back from Tambaram, my car engine suddenly went off. I somehow managed to stop my vehicle at the corner of the road without causing trouble to other vehicles. The car would not start for a few minutes and somehow I was able to start and managed to reach Ashok Nagar when again it completely halted in a signal. I had to get few people to push the car to a corner of the road. I called up Kun Hyundai and they arranged a person to check the car immediately. He came and suspected the issue is with ECM and it has to be towed to a workshop for further diagnosis and repair. I got the vehicle towed away to Kun Hyundai workshop on the same day. The next day I was told the issue is with ECM and replacing ECM would cost around Rs 50000/- and that they would repair it for a lower cost temporarily. The rectification was done and I got the car delivered within a week. Due to lockdown I could not take the vehicle outside much and when I took the vehicle during October 2020, again the car halted in the middle of the main road. Again somehow I managed to get the car running after multiple attempts and drove back home even though it halted quite a few times during that drive. I called up Kun Hyundai (Arumbakkam) as I had the service done on August 2020 only. After about 1 week of repeated calling they sent a person to my home. He inspected and found the issue is again with ECM. He said he get the car towed to the workshop again the next day. Again there was no response for 3-4 days inspite of repeated calls from me to get the engineer to take the vehicle for repair. Then after a week a person from Kun Hyundai Arumbakkam came and removed the ECM part and said he would have to give this for repair with their vendor and will ask the service engineer to call me and update. There was no update from any of them for a week now. Even if I call the person who has taken my ECM, he would say he will check with the service engineer or ask him to call me. If I call the service engineer he would say he will ask the person who had removed the ECM from my vehicle to contact me.
I have not got any updates on my vehicle for the past 1 week even after repeated calls from me. I never expected Hyundai to treat customer so badly that I don't even know whether they are actually attending to my problem or is my ECM just lying there in the service center without anybody attending on it.

I regret buying Hyundai for the first time looking at the pathetic response.