Misled to migrate contract and now paying twice for device

On 9 February I received a call from Telkom upgrades. The sales consultant offered me an upgrade on my plan on my 6 month old contract. As it was a good offer, I agreed however there was no such plan but she migrated me to a plan without the minutes that she had offered. I then requested to be put back onto my original plan as she had misled me. After many calls I was put back to my original plan however I am now charged for my device for the remaining term of the initial contract and my new contract does not show 6 months old but a new contract hence it means I am paying double for the device. I am trying to get Telkom to rectify this but nothing seems to be happening and the consultant Esnat and her team leader Chris Odero t is ignoring my emails. What do I do and how do I d sort this out? On 6 March Chris said that he had sent billing a request to sort out and that he was going to call me on 7 March. Today is 17 March and he has not called nor has he rep**** to any emails sent to him daily since the 7th. Please help. Thanks. Mr Motala ********** 588