Signed a 24 month contract for smart 100 1 gig

I went into the shop in 2015 and asked for the Smartplan 100. I was informed by the fourways consultant that I would get 100 free minutes, 1 gig and promotional data of 150 mb per month. This was loaded on the system and confirmed by myself as well as the consultant for three contracts with the first one commencing in September 2015. Every month since then only the 150mb and 100 minutes has been made available on a monthly basis. On querying this I was referred to the helpdesk who tells me that this plan does not qualify for the 1 gig. I went back to the store and Zak showed me that it was still loaded with the 1 gig. After numerous back and forth exchanges I was finally informed today 3 March 2016 that Telkom will not re-imburse me for my data that was signed and paid for. I would like a full refund for the data not delivered and I would like to cancel my three contracts. I know this call will be responded to in six months time because that was the last turnaround for a Telkom query that was not satisfactorily resolved and I will be also taking this matter up with the relevant consumer bodies.