Two handset fee charges for 3 months!!!!!

<p>Since my upgrade I have been charged for both my old handset which is paid off - hence the upgrade - as well as the handset fee for the new phone. After numerous calls to (a super unhelpful) customer service, the problem still has not been resolved. Can someone knowledgable about your system please contact me to resolve this. All I want is for the money to be refunded as Vodacom actually has no right to it. </p>