Very poor service delivery

My mom had taken out a phone contract for me almost 2years ago.Her method of payment was by debit order each month.She stopped working permanently in February this year, called the Vodacom call centre to inform them of this and request to prematurely close the contract, thus pay off the remaining amount before the expiration date which is August 2015. She was assisted by a man, Emmanuel, who claimed to fully understand her request and \processed "it.My mother paid"