cancellation of contract

WE HAVE BEEN TRYING TO CANCELL A MTN CONTRACT FOR MORE THAN 2 WEEK NOW PHONING ***CONSTANTLY I HAVE BEEN TO MTN SPRINGS AND WAS INFORMED THEY CANNOT ASSIST ME AS THEY ARE STRIKING. NOW I HAVE TO PAY AN ADDITIONAL MONTH BECUAE THEY ARE STRIKING AND THE CLIENTS MUST PAY FOR CONTRACTS THAT NEEDS TO BE CANCELLED AND NO ONE WANTS TO ASSIST YOU TO ME R400 TO PAY FOR SOMETHNG I DO NOT NEED ANYMORE IS A LOT OF MONEY