Starting the 3rd week of my 30 day probation period, I miss understood the date/time of my shift and missed work (the shift had ended by the time I woke up). I can't get in contact with any of the numbers I was given to call in. I work on day ramp and the next day I work is Tuesday. What are my options? Is it possible for me to show up during the hub shift later tonight to try to explain myself, and maybe work that shift to "make it up"? Or wait til Tuesday for my normal shift and keep trying to call in?