7 months in I had to use all my available occurrences due to a car wreck. Was told by my supervisor they were going to be gone by a certain day only for them to come back and try writing me up. My supervisor and union steward agreed that it was their mess up and I didn't get put on probation but it certainly feels like it. Now anytime I call off I have to go over this same issue with them. They just tried to put me on probation again only to admit they made a mistake AGAIN. Can I grieve this? They're acting as if I'm the troublemaker when they are literally printing out written warnings without verifying the dates in my PITTS book. This is twice now they've messed up. Are they just allowed to get away with is? Is there something I can do?