Business ProfileforFinch Hyundai

I've always wondered why there were a few irate customers on my previous visits to this location, but now I know why... I brought my car in for a service package 3 on 07/14/2023 for my 2021 Hyundai Veloster N. The mechanics who ended up servicing my car used the incorrect grade of oil (0W20) when the owner's manual and the oil cap clearly state to use 0W30. Today, on 07/28/2023, I dealt with the service manager at Hyundai Finch dealership in London, Ontario, named ****** *****, to address my issue. I informed ****** about the problem that occurred during my last visit and tried to convince him that it's not acceptable for my car to run on 0W20, but they were not willing to fix the issue. I explained to ****** that I had done research online, and everyone recommends following the owner's manual, which clearly specifies 0W30 as the appropriate grade of oil. Despite my attempts to escalate the matter, ****** tried to convince me that I was wrong, and when I raised my voice, he asked me to leave the service bay and take my business elsewhere. After raising the issue with *****, the front Sales receptionist, she provided me with the General Manager's card, **** ******. When I returned to the service department to inform them that I would be escalating the matter further, ****** finally agreed to address the problem. However, even during the meeting in his office, ****** showed little to no experience in dealing with irate customers. He treated me as if I were a dumb customer who didn't know what I was talking about. Furthermore, he displayed no concern for my feedback and seemed disinterested in working towards a solution. Ultimately, I did get the correct oil change to 0W30. Nevertheless, during the entire process, ****** showed no empathy or sympathy for the inconvenience caused. He failed to apologize for the mistake, didn't provide updated paperwork to confirm the oil change was indeed 0W30, and made it seem like I should trust their word without any evidence.