Hah I had a similar experience with a Dealership #1 when I had my oil pan replaced a couple months ago. They claimed there were three leaks (oilpan, valve cover, and crank shaft seal) and wanted almost $2k for the work. Called a local shop and had them look and all they saw was a leaky oil pan. Had it fixed for $300 and presto - no oil leak! Now that I know about the TSB, I need to see if Kia will reimburse me for the work. Probably not since it wasn't done at a dealer.I had that issue early on with my 2012, like back in 2015. Here is what happened:
Dealership #1: said I had a stripped oil pan bolt, just big fat fucking liars who lied directly to my face. They wanted to charge me for a new oil pan. I asked for the car back. Fortunately they left the oil pan bolt alone - but I could see a worse situation at an even worse dealership they might have just stripped the bolt to avoid looking like liars, thankfully they didn't do that to me.