acc.query

Hi,on the 12/10/14 I requested a premature cancellation from vodacom on my laptop acc.which they sent me immediately. as I wanted to close my account, I went to the standard bank to pay the amount of R1815.86 which appears on the cancellation letter , the amount which they told me to pay.after that I emailed the letter together with the slip to them.now I went to old mutual to consolidated , they can't help me because it shows that im still owing vodacom.I phoned them and they told me my acc. Is handed over to their lawyers they can't help me.I contacted their lawyer her name is tembeka in october, and examplained everything to her, she told me to sent me the premature cancellation qotation letter, bank slip and affidavit from police station which I also did , last week they told her that they acknowledge they made a mistake they will clear my name and give me the paid up letter.when called her resquesting my letter , they sent her another mail saying they can't help her im still owing they.all the mails they sent her she forwarded to me, and now she can't help me anymore because they don't want to help her.I phoned them back they still can't assist, pls assist me to resolve this.