Firestone Complete Auto Care review: Fan clutch still not working

On May 19, 2022, I had a fan clutch replaced. I was told that the fan clutch had a lifetime warranty. I paid a total of 953.79 for all services and was told there were no diagnostic codes that showed up, so there was nothing else wrong with my vehicle. A couple of months later, my vehicle started overheating again. I contacted Firestone in Pineville, La and spoke with a lady, explaining to her that my vehicle had started overheating again. I took my vehicle in to get checked out. She then began talking about codes that were showing up, when there were no codes showing before I had my vehicle worked on by Firestone. She then told me to take it to Marler Ford. So I have paid almost $1000 for a part that has a lifetime warranty, but Firestone will not replace it.