Should I Beg for my Job Back?

Two weeks, a company I worked for the mgr. pulled me aside & said they overestimated production and were cutting heads. He said I would be on call. He said the same thing to a few more of the other new workers, but I was the only one put on call. I think I pissed them off because they wanted us to come in on Mother's day on short notice & when I asked the manager if we were to come in that day he said yes and I remarked "that is mother's day". He replied back "that is when the warehouse works so we also work that day". I said ok but outside I mentioned to others that this wasn't right due to being such short notice. Other people began to say how they didn't want to come in on mother's day. The manager ended up apologizing and having them come in Monday instead of mothers day and said sorry they didn't realize it was mother's day. But I think that made him mad. Its been two weeks now, & I really need a job. They know I was a good worker. I ended up emailing them about possibly getting my drug test money back, and the supervisor called me & said this was not policy. He also said as of then I was terminated but mentioned being reinstated if production went up. Also, people who started after me were not laid off which I think was bull. Should I just beg for my job back or forget them?