Incorrect Billing for a Handset

Good day, I received a call from Vodacom regarding my upgrade, due to Vodacom not being very competitive with their rates i advised the consultant other service providers are offering better packages. A consultant by the name of Zinzile called me from Retentions. She offered me a package as per email copied below, for the past 3 months Vodacom started to charge me for a handset, i called the call centre numerous times they transfer me from person to person, i emailed customers services, no response. Please look into this: On 26 Apr 2017 15:19, ********** wrote: Good day As per our conversation on the upgrade deal 50sms+1gig data for 24months+flexi 200 +p9 lite black @199 per month. Regards, Zinzile “This e-mail is sent on the Terms and Conditions that can be accessed by Clicking on this link https://webmail.vodacom.co.za/tc/default.html "