Carrier/rack problems of the 2013 Kia Motor Soul

Last year I took my vehicle to billion auto in iowa city (2 hours from where I live) to get my recall serviced. At this time my vehicle was losing power. When I took it to the dealership they had it in and out in 15-20 minutes and they said only had to do an update. Which was irritating, considering I had asked them to check my catalytic converter and they didn't. Because prior to that a mechanic in my town thought something could have been wrong with it. Well here I am in 2020, and I went back to this dealership (this is the only kia in my area). Last year in may there was a recall for the mdps coupling. The letter also stated that they extended the warranty to 100,000 miles- I'm right around 96,500 miles so I am still covered. I called the dealership and asked to get it fixed since I was experiencing noises in my steering wheel turning left or right/ and when vehicle is stopped. They said yes, I spoke with the service advisor and he told me that I would be covered. So I took my car up there Thursday the 28th to get this serviced. Another worker told me in person my coupling wasn't that bad, and I could always come back in the future to get it repaired. He then further told me that my power-steering rack was making a little noise too, but that wouldn't need to be repaired for another 5-10 years. Then he charged me $65 dollars for a diagnostic fee, which is completely wrong. I called kia cooperate, spoke with numerous of folks. I was told on Thursday by cooperate that they called the dealership and told them my complaint. But there was nothing they could do. So I called cooperate back demanding to talk to my case worker, victoria. Which she hasn't called me back. I feel like they aren't taking me serious. I've had two past recalls on this vehicle, and wasn't handled appropriately. I also shouldn't of been charged a diagnostic fee. I want a refund as well.