The problem is now he'll do the same again. I used to work for a high st retail company and they used to rota staff in when ever they felt like it for bank holidays etc. I understand that they need extra ppl for busier days etc but they were such c**ts there i got fed up and asked them never to rota me in extra hours again. They did for a few months and I never went in. For a while thay wld ring up and ask where i was but i never went in so they gave up and left me alone