Poor customer relations/service #worsttimeofmylife

I have been a loyal customer of Vodacom for more than 10 years. Last year I decided to cancel my contract due to financial difficulties. I have now decided to start a new contract but according to the sales consultant at my local vodashop I owe money on the previous contract that has been cancelled. Though I can not pay them as it has been handed over to lawyers by vodacom legal team. I can not get hold of the lawyers at all and get no joy from the vodacom legal team to help me settle this debt. I have been to the vodashop at mountain mill mall in Worcester, on numerous occasions, but the best they can do is send an email and wait. I have been waiting for more than a month and there is still no feedback from anyone. This is exceptional bad customer service from a leading mobile network in South Africa to settle such a small problem!