Contact sim card has not been working for 8 days and Vodacom

So Vodacom suspended my contract simcard when I call their calls Centre I was told I need to call the forensic department which i did but don't answer they phones. It has been 7 days the call Centre keeps on telling there is nothing tgye can do to assit me I just have to keep on trying to call the forensic team, I was told emails were sent to the forensic to call me back but no one has bothered. Today the call Centre agent I spoke to was supposed to transfer me. To cancelation to cancel my contract but she hang up on me I guess I was bothering her, I cannot keep on paying for a service am not using... I need my sim card unlocked or cancel my contract