Standard Bank blocked my account just before Christmas

My Standard Bank account was put on hold just before Christmas and I had no money for the day,It was such an inconvenience because I am the provider for my family. I was assured that the investigator would contact me 48 hours prior to talking to customer service, yet I am still waiting for the call from the investigator and we are in the new year. I contacted customer service but they can not do anything about the block. I would really like this sorted out very soon