My food stamps have been cut off!!

I was supposed to get my food stamps today. I tried to use my card and it was declined. I tried to call my caseworker but all the phone does is ring and ring. They don't have voicemail. I have tried maybe 10 times. I even tried to call her superior. The lady at the front desk could only tell me that my food stamps were up last month. If I remember correctly I had them for a year. It hasn't been a year yet. She couldn't tell me anything else. We have absolutely no food in the house and little money. Rent is due this week too so the money we do have we have to use towards rent. It just p*sses me off to no end.