Phone blocked by Vodacom

My cellphone was blocked by Vodacom but I do not have a contract with them on the number blocked. It has taken 2 days to find out what is wrong with my phone. When I went to Vodacom to get the phone unblocked there is nobody that can help waited over 11/2 hours and told head office is trying to sort it out. I am a consultant and have to have a phone nobody col;d say how long it will take all they say is it is with head office.