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You need to file a formal grievance process to straighten this out. If you were written up for not calling in within two hours of your start time, which is not correct because you called in at 11:30 within one and half hour of your start time, then the write-up/consultation is false and must be stricken from your personnel records. Writing you up for allegedly not calling in on time, but then berating you for coming in more than two hours later does not make sense. You would need a third party to intervene by filing a formal grievance process.