Gerry Lane Buick GMC

After calling in and providing Gerry Lane with my VIN because they have worked with my truck before AND it's monitored by OnStar I was told if the service I was bringing it in for matched what we discussed it was covered and there was no fee. I brought it in and they did confirm it matched what I told them on the phone but it was not covered after all. So, I had to pay a diagnostic fee a second time. I was told that the service expired at 120k miles and the person I spoke to should have told me that, but probably didn't know my truck had more miles on it and I countered I'm not sure how he would not know that as we started off by opening my vehicle history. They record your mileage each time you bring it in. Anyway. I will not be going back. I do not appreciate having to pay for a diagnostic twice for a known issue. Not ok.