Simcard blocked

I called the callcentre reporting my blocked simcard. I was asked questions like who ricard the simcard for me. A friend of mine bought the simcard in September 2012. I didn't have a proof of address then. I was not in the country and needed to be connected as soon as i arrived in the country.. Now the simcard has been blocked and it will be recycled today. I am told to purchase a new simcard as the simcard needs to be on my name. I don't know what to do now. I tried convincing the call centre supervisor. All my contacts are on the blocked simcard. I'm very angry and i need an explanation.